diff --git a/Makefile b/Makefile
index 806f6ff..d3fc732 100644
--- a/Makefile
+++ b/Makefile
@@ -20,12 +20,12 @@ ifeq ($(uname_S),SunOS)
   LDFLAGS?=-ldl -lnsl -lsocket
   DYLIBSUFFIX=so
   STLIBSUFFIX=a
-  DYLIB_MINOR_NAME?=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR).$(HIREDIS_MINOR)
-  DYLIB_MAJOR_NAME?=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR)
-  DYLIBNAME?=$(LIBNAME).$(DYLIBSUFFIX)
-  DYLIB_MAKE_CMD?=$(CC) -G -o $(DYLIBNAME) -h $(DYLIB_MINOR_NAME)
-  STLIBNAME?=$(LIBNAME).$(STLIBSUFFIX)
-  STLIB_MAKE_CMD?=ar rcs $(STLIBNAME)
+  DYLIB_MINOR_NAME=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR).$(HIREDIS_MINOR)
+  DYLIB_MAJOR_NAME=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR)
+  DYLIBNAME=$(LIBNAME).$(DYLIBSUFFIX)
+  DYLIB_MAKE_CMD=$(CC) -G -o $(DYLIBNAME) -h $(DYLIB_MINOR_NAME)
+  STLIBNAME=$(LIBNAME).$(STLIBSUFFIX)
+  STLIB_MAKE_CMD=ar rcs $(STLIBNAME)
   INSTALL= cp -r
 else
 ifeq ($(uname_S),Darwin)
@@ -33,23 +33,23 @@ ifeq ($(uname_S),Darwin)
   OBJARCH?=-arch i386 -arch x86_64
   DYLIBSUFFIX=dylib
   STLIBSUFFIX=a
-  DYLIB_MINOR_NAME?=$(LIBNAME).$(HIREDIS_MAJOR).$(HIREDIS_MINOR).$(DYLIBSUFFIX)
-  DYLIB_MAJOR_NAME?=$(LIBNAME).$(HIREDIS_MAJOR).$(DYLIBSUFFIX)
-  DYLIBNAME?=$(LIBNAME).$(DYLIBSUFFIX)
-  DYLIB_MAKE_CMD?=libtool -dynamic -o $(DYLIBNAME) -install_name $(DYLIB_MINOR_NAME) -lm $(DEBUG) -
-  STLIBNAME?=$(LIBNAME).$(STLIBSUFFIX)
-  STLIB_MAKE_CMD?=libtool -static -o $(STLIBNAME) -
+  DYLIB_MINOR_NAME=$(LIBNAME).$(HIREDIS_MAJOR).$(HIREDIS_MINOR).$(DYLIBSUFFIX)
+  DYLIB_MAJOR_NAME=$(LIBNAME).$(HIREDIS_MAJOR).$(DYLIBSUFFIX)
+  DYLIBNAME=$(LIBNAME).$(DYLIBSUFFIX)
+  DYLIB_MAKE_CMD=libtool -dynamic -o $(DYLIBNAME) -install_name $(DYLIB_MINOR_NAME) -lm $(DEBUG) -
+  STLIBNAME=$(LIBNAME).$(STLIBSUFFIX)
+  STLIB_MAKE_CMD=libtool -static -o $(STLIBNAME) -
   INSTALL= cp -a
 else
   CFLAGS?=$(OPTIMIZATION) -fPIC -Wall -W -Wstrict-prototypes -Wwrite-strings $(ARCH) $(PROF)
   DYLIBSUFFIX=so
   STLIBSUFFIX=a
-  DYLIB_MINOR_NAME?=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR).$(HIREDIS_MINOR)
-  DYLIB_MAJOR_NAME?=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR)
-  DYLIBNAME?=$(LIBNAME).$(DYLIBSUFFIX)
-  DYLIB_MAKE_CMD?=$(CC) -shared -Wl,-soname,$(DYLIB_MINOR_NAME) -o $(DYLIBNAME)
-  STLIBNAME?=$(LIBNAME).$(STLIBSUFFIX)
-  STLIB_MAKE_CMD?=ar rcs $(STLIBNAME)
+  DYLIB_MINOR_NAME=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR).$(HIREDIS_MINOR)
+  DYLIB_MAJOR_NAME=$(LIBNAME).$(DYLIBSUFFIX).$(HIREDIS_MAJOR)
+  DYLIBNAME=$(LIBNAME).$(DYLIBSUFFIX)
+  DYLIB_MAKE_CMD=$(CC) -shared -Wl,-soname,$(DYLIB_MINOR_NAME) -o $(DYLIBNAME)
+  STLIBNAME=$(LIBNAME).$(STLIBSUFFIX)
+  STLIB_MAKE_CMD=ar rcs $(STLIBNAME)
   INSTALL= cp -a
 endif
 endif