diff --git a/conf/pulsar_tools_env.sh b/conf/pulsar_tools_env.sh
index a356dbb9a28df..1be4f76f99901 100755
--- a/conf/pulsar_tools_env.sh
+++ b/conf/pulsar_tools_env.sh
@@ -42,13 +42,13 @@
 # PULSAR_GLOBAL_ZK_CONF=
 
 # Extra options to be passed to the jvm
-PULSAR_MEM=${PULSAR_MEM:-"-Xmx128m -XX:MaxDirectMemorySize=128m"}
+PULSAR_TOOL_MEM=${PULSAR_TOOL_MEM:-"-Xmx128m -XX:MaxDirectMemorySize=128m"}
 
 # Garbage collection options
-PULSAR_GC=${PULSAR_GC:-" -client "}
+PULSAR_TOOL_GC=${PULSAR_TOOL_GC:-" -client "}
 
 # Extra options to be passed to the jvm
-PULSAR_EXTRA_OPTS="${PULSAR_MEM} ${PULSAR_GC} ${PULSAR_GC_LOG} -Dio.netty.leakDetectionLevel=disabled ${PULSAR_EXTRA_OPTS}"
+PULSAR_EXTRA_OPTS="${PULSAR_TOOL_MEM} ${PULSAR_TOOL_GC} ${PULSAR_GC_LOG} -Dio.netty.leakDetectionLevel=disabled ${PULSAR_EXTRA_OPTS}"
 
 # Add extra paths to the bookkeeper classpath
 # PULSAR_EXTRA_CLASSPATH=