diff --git a/BUILDING.txt b/BUILDING.txt
index 0252571860..bfb0e0852e 100644
--- a/BUILDING.txt
+++ b/BUILDING.txt
@@ -9,6 +9,8 @@ Requirements:
 * Findbugs 1.3.9 (if running findbugs)
 * ProtocolBuffer 2.5.0
 * CMake 2.6 or newer (if compiling native code)
+* Zlib devel (if compiling native code)
+* openssl devel ( if compiling native hadoop-pipes )
 * Internet connection for first build (to fetch all Maven and Hadoop dependencies)
 
 ----------------------------------------------------------------------------------
diff --git a/hadoop-common-project/hadoop-common/CHANGES.txt b/hadoop-common-project/hadoop-common/CHANGES.txt
index 034ace7244..2bf23abd4a 100644
--- a/hadoop-common-project/hadoop-common/CHANGES.txt
+++ b/hadoop-common-project/hadoop-common/CHANGES.txt
@@ -314,6 +314,9 @@ Trunk (Unreleased)
 
     HADOOP-10488. TestKeyProviderFactory fails randomly. (tucu)
 
+    HADOOP-10350. BUILDING.txt should mention openssl dependency required
+    for hadoop-pipes (Vinayakumar B)
+
   OPTIMIZATIONS
 
     HADOOP-7761. Improve the performance of raw comparisons. (todd)