diff --git a/src/build.sh b/src/build.sh
index d227c66525f1af6eb9d540ef55a82b26cff736b2..12de6c014297be1c9ff1138f56bc2926d522deb7 100755
--- a/src/build.sh
+++ b/src/build.sh
@@ -100,6 +100,9 @@ else
 fi
 
 echo "CMAKE_OPTIONS=$CMAKE_OPTIONS"
+
+#rocksdb enable jemalloc by default, but we use regular malloc.
+MAKE_OPTIONS="$MAKE_OPTIONS DISABLE_JEMALLOC=1"
 echo "MAKE_OPTIONS=$MAKE_OPTIONS"
 
 echo "#############################################################################"