diff --git a/adapters/ae.h b/adapters/ae.h
index b8b2228..85260a7 100644
--- a/adapters/ae.h
+++ b/adapters/ae.h
@@ -72,7 +72,7 @@ int redisAeAttach(aeEventLoop *loop, redisAsyncContext *ac) {
     redisAeEvents *e;
 
     /* Nothing should be attached when something is already attached */
-    if (ac->_adapter_data != NULL)
+    if (ac->ev.data != NULL)
         return REDIS_ERR;
 
     /* Create container for context and r/w events */
@@ -83,12 +83,12 @@ int redisAeAttach(aeEventLoop *loop, redisAsyncContext *ac) {
     e->reading = e->writing = 0;
 
     /* Register functions to start/stop listening for events */
-    ac->evAddRead = redisAeAddRead;
-    ac->evDelRead = redisAeDelRead;
-    ac->evAddWrite = redisAeAddWrite;
-    ac->evDelWrite = redisAeDelWrite;
-    ac->evCleanup = redisAeCleanup;
-    ac->_adapter_data = e;
+    ac->ev.addRead = redisAeAddRead;
+    ac->ev.delRead = redisAeDelRead;
+    ac->ev.addWrite = redisAeAddWrite;
+    ac->ev.delWrite = redisAeDelWrite;
+    ac->ev.cleanup = redisAeCleanup;
+    ac->ev.data = e;
 
     return REDIS_OK;
 }
diff --git a/adapters/libev.h b/adapters/libev.h
index 3b9ed65..7b2b6af 100644
--- a/adapters/libev.h
+++ b/adapters/libev.h
@@ -82,7 +82,7 @@ int redisLibevAttach(EV_P_ redisAsyncContext *ac) {
     redisLibevEvents *e;
 
     /* Nothing should be attached when something is already attached */
-    if (ac->_adapter_data != NULL)
+    if (ac->ev.data != NULL)
         return REDIS_ERR;
 
     /* Create container for context and r/w events */
@@ -98,12 +98,12 @@ int redisLibevAttach(EV_P_ redisAsyncContext *ac) {
     e->wev.data = e;
 
     /* Register functions to start/stop listening for events */
-    ac->evAddRead = redisLibevAddRead;
-    ac->evDelRead = redisLibevDelRead;
-    ac->evAddWrite = redisLibevAddWrite;
-    ac->evDelWrite = redisLibevDelWrite;
-    ac->evCleanup = redisLibevCleanup;
-    ac->_adapter_data = e;
+    ac->ev.addRead = redisLibevAddRead;
+    ac->ev.delRead = redisLibevDelRead;
+    ac->ev.addWrite = redisLibevAddWrite;
+    ac->ev.delWrite = redisLibevDelWrite;
+    ac->ev.cleanup = redisLibevCleanup;
+    ac->ev.data = e;
 
     /* Initialize read/write events */
     ev_io_init(&e->rev,redisLibevReadEvent,c->fd,EV_READ);
diff --git a/adapters/libevent.h b/adapters/libevent.h
index dc1f5c7..2cc2823 100644
--- a/adapters/libevent.h
+++ b/adapters/libevent.h
@@ -52,7 +52,7 @@ int redisLibeventAttach(redisAsyncContext *ac, struct event_base *base) {
     redisLibeventEvents *e;
 
     /* Nothing should be attached when something is already attached */
-    if (ac->_adapter_data != NULL)
+    if (ac->ev.data != NULL)
         return REDIS_ERR;
 
     /* Create container for context and r/w events */
@@ -60,12 +60,12 @@ int redisLibeventAttach(redisAsyncContext *ac, struct event_base *base) {
     e->context = ac;
 
     /* Register functions to start/stop listening for events */
-    ac->evAddRead = redisLibeventAddRead;
-    ac->evDelRead = redisLibeventDelRead;
-    ac->evAddWrite = redisLibeventAddWrite;
-    ac->evDelWrite = redisLibeventDelWrite;
-    ac->evCleanup = redisLibeventCleanup;
-    ac->_adapter_data = e;
+    ac->ev.addRead = redisLibeventAddRead;
+    ac->ev.delRead = redisLibeventDelRead;
+    ac->ev.addWrite = redisLibeventAddWrite;
+    ac->ev.delWrite = redisLibeventDelWrite;
+    ac->ev.cleanup = redisLibeventCleanup;
+    ac->ev.data = e;
 
     /* Initialize and install read/write events */
     event_set(&e->rev,c->fd,EV_READ,redisLibeventReadEvent,e);
diff --git a/async.c b/async.c
index 91d6a8e..4409307 100644
--- a/async.c
+++ b/async.c
@@ -50,13 +50,13 @@ static redisAsyncContext *redisAsyncInitialize(redisContext *c) {
     ac->err = 0;
     ac->errstr = NULL;
     ac->data = NULL;
-    ac->_adapter_data = NULL;
 
-    ac->evAddRead = NULL;
-    ac->evDelRead = NULL;
-    ac->evAddWrite = NULL;
-    ac->evDelWrite = NULL;
-    ac->evCleanup = NULL;
+    ac->ev.data = NULL;
+    ac->ev.addRead = NULL;
+    ac->ev.delRead = NULL;
+    ac->ev.addWrite = NULL;
+    ac->ev.delWrite = NULL;
+    ac->ev.cleanup = NULL;
 
     ac->onConnect = NULL;
     ac->onDisconnect = NULL;
@@ -100,7 +100,7 @@ int redisAsyncSetConnectCallback(redisAsyncContext *ac, redisConnectCallback *fn
         /* The common way to detect an established connection is to wait for
          * the first write event to be fired. This assumes the related event
          * library functions are already set. */
-        if (ac->evAddWrite) ac->evAddWrite(ac->_adapter_data);
+        if (ac->ev.addWrite) ac->ev.addWrite(ac->ev.data);
         return REDIS_OK;
     }
     return REDIS_ERR;
@@ -166,7 +166,7 @@ static void __redisAsyncFree(redisAsyncContext *ac) {
     }
 
     /* Signal event lib to clean up */
-    if (ac->evCleanup) ac->evCleanup(ac->_adapter_data);
+    if (ac->ev.cleanup) ac->ev.cleanup(ac->ev.data);
 
     /* Execute disconnect callback. When redisAsyncFree() initiated destroying
      * this context, the status will always be REDIS_OK. */
@@ -279,7 +279,7 @@ void redisAsyncHandleRead(redisAsyncContext *ac) {
         __redisAsyncDisconnect(ac);
     } else {
         /* Always re-schedule reads */
-        if (ac->evAddRead) ac->evAddRead(ac->_adapter_data);
+        if (ac->ev.addRead) ac->ev.addRead(ac->ev.data);
         redisProcessCallbacks(ac);
     }
 }
@@ -293,13 +293,13 @@ void redisAsyncHandleWrite(redisAsyncContext *ac) {
     } else {
         /* Continue writing when not done, stop writing otherwise */
         if (!done) {
-            if (ac->evAddWrite) ac->evAddWrite(ac->_adapter_data);
+            if (ac->ev.addWrite) ac->ev.addWrite(ac->ev.data);
         } else {
-            if (ac->evDelWrite) ac->evDelWrite(ac->_adapter_data);
+            if (ac->ev.delWrite) ac->ev.delWrite(ac->ev.data);
         }
 
         /* Always schedule reads after writes */
-        if (ac->evAddRead) ac->evAddRead(ac->_adapter_data);
+        if (ac->ev.addRead) ac->ev.addRead(ac->ev.data);
 
         /* Fire onConnect when this is the first write event. */
         if (!(c->flags & REDIS_CONNECTED)) {
@@ -328,7 +328,7 @@ static int __redisAsyncCommand(redisAsyncContext *ac, redisCallbackFn *fn, void
     __redisPushCallback(&ac->replies,&cb);
 
     /* Always schedule a write when the write buffer is non-empty */
-    if (ac->evAddWrite) ac->evAddWrite(ac->_adapter_data);
+    if (ac->ev.addWrite) ac->ev.addWrite(ac->ev.data);
 
     return REDIS_OK;
 }
diff --git a/async.h b/async.h
index 9819e0d..e10fa1b 100644
--- a/async.h
+++ b/async.h
@@ -66,16 +66,18 @@ typedef struct redisAsyncContext {
     /* Not used by hiredis */
     void *data;
 
-    /* Used by the different event lib adapters to store their private data */
-    void *_adapter_data;
+    /* Event library data and hooks */
+    struct {
+        void *data;
 
-    /* Called when the library expects to start reading/writing.
-     * The supplied functions should be idempotent. */
-    void (*evAddRead)(void *privdata);
-    void (*evDelRead)(void *privdata);
-    void (*evAddWrite)(void *privdata);
-    void (*evDelWrite)(void *privdata);
-    void (*evCleanup)(void *privdata);
+        /* Hooks that are called when the library expects to start
+         * reading/writing. These functions should be idempotent. */
+        void (*addRead)(void *privdata);
+        void (*delRead)(void *privdata);
+        void (*addWrite)(void *privdata);
+        void (*delWrite)(void *privdata);
+        void (*cleanup)(void *privdata);
+    } ev;
 
     /* Called when either the connection is terminated due to an error or per
      * user request. The status is set accordingly (REDIS_OK, REDIS_ERR). */