diff --git a/bin/bookkeeper b/bin/bookkeeper
index 0cc07dd49aba5..445ddb22f9366 100755
--- a/bin/bookkeeper
+++ b/bin/bookkeeper
@@ -183,7 +183,7 @@ fi
 OPTS="-cp $BOOKIE_CLASSPATH $OPTS"
 
 # Disable ipv6 as it can cause issues
-OPTS="$OPTS -Djava.net.preferIPv4Stack=true"
+OPTS="-Djava.net.preferIPv4Stack=true $OPTS"
 
 OPTS="$OPTS $BOOKIE_MEM $BOOKIE_GC $BOOKIE_GC_LOG $BOOKIE_EXTRA_OPTS"
 
diff --git a/bin/function-localrunner b/bin/function-localrunner
index 2e0aa0f6dffe2..39ce218ceaac2 100755
--- a/bin/function-localrunner
+++ b/bin/function-localrunner
@@ -103,7 +103,7 @@ fi
 # Ensure we can read bigger content from ZK. (It might be
 # rarely needed when trying to list many z-nodes under a
 # directory)
-OPTS="$OPTS -Djute.maxbuffer=10485760 -Djava.net.preferIPv4Stack=true"
+OPTS="-Djava.net.preferIPv4Stack=true $OPTS -Djute.maxbuffer=10485760"
 
 OPTS="-cp $PULSAR_CLASSPATH $OPTS"
 
diff --git a/bin/pulsar b/bin/pulsar
index 1165681237ae3..f201829cf7259 100755
--- a/bin/pulsar
+++ b/bin/pulsar
@@ -285,7 +285,7 @@ OPTS="$OPTS -Dlog4j.configurationFile=`basename $PULSAR_LOG_CONF`"
 # Ensure we can read bigger content from ZK. (It might be
 # rarely needed when trying to list many z-nodes under a
 # directory)
-OPTS="$OPTS -Djute.maxbuffer=10485760 -Djava.net.preferIPv4Stack=true"
+OPTS="-Djava.net.preferIPv4Stack=true $OPTS -Djute.maxbuffer=10485760"
 # Enable TCP keepalive for all Zookeeper client connections
 OPTS="$OPTS -Dzookeeper.clientTcpKeepAlive=true"
 
diff --git a/bin/pulsar-admin-common.cmd b/bin/pulsar-admin-common.cmd
index 013d9ef4a55b6..fea512cfca32c 100644
--- a/bin/pulsar-admin-common.cmd
+++ b/bin/pulsar-admin-common.cmd
@@ -48,7 +48,7 @@ for %%a in ("%PULSAR_LOG_CONF%") do SET "PULSAR_LOG_CONF_BASENAME=%%~nxa"
 set "PULSAR_CLASSPATH=%PULSAR_CLASSPATH%;%PULSAR_LOG_CONF_DIR%"
 
 set "OPTS=%OPTS% -Dlog4j.configurationFile="%PULSAR_LOG_CONF_BASENAME%""
-set "OPTS=%OPTS% -Djava.net.preferIPv4Stack=true"
+set "OPTS=-Djava.net.preferIPv4Stack=true %OPTS%"
 
 set "isjava8=false"
 FOR /F "tokens=*" %%g IN ('"java -version 2>&1"') do (
diff --git a/bin/pulsar-admin-common.sh b/bin/pulsar-admin-common.sh
index 8aa21c00f634d..1b242c6d4b782 100755
--- a/bin/pulsar-admin-common.sh
+++ b/bin/pulsar-admin-common.sh
@@ -89,7 +89,7 @@ fi
 PULSAR_CLASSPATH="$PULSAR_JAR:$PULSAR_CLASSPATH:$PULSAR_EXTRA_CLASSPATH"
 PULSAR_CLASSPATH="`dirname $PULSAR_LOG_CONF`:$PULSAR_CLASSPATH"
 OPTS="$OPTS -Dlog4j.configurationFile=`basename $PULSAR_LOG_CONF`"
-OPTS="$OPTS -Djava.net.preferIPv4Stack=true"
+OPTS="-Djava.net.preferIPv4Stack=true $OPTS"
 
 IS_JAVA_8=$( $JAVA -version 2>&1 | grep version | grep '"1\.8' )
 # Start --add-opens options
diff --git a/bin/pulsar-perf b/bin/pulsar-perf
index 3aa3ada193663..5f07203641d4f 100755
--- a/bin/pulsar-perf
+++ b/bin/pulsar-perf
@@ -132,7 +132,7 @@ fi
 
 PULSAR_CLASSPATH="$PULSAR_JAR:$PULSAR_CLASSPATH:$PULSAR_EXTRA_CLASSPATH"
 PULSAR_CLASSPATH="`dirname $PULSAR_LOG_CONF`:$PULSAR_CLASSPATH"
-OPTS="$OPTS -Dlog4j.configurationFile=`basename $PULSAR_LOG_CONF` -Djava.net.preferIPv4Stack=true"
+OPTS="-Djava.net.preferIPv4Stack=true $OPTS -Dlog4j.configurationFile=`basename $PULSAR_LOG_CONF`"
 
 IS_JAVA_8=$( $JAVA -version 2>&1 | grep version | grep '"1\.8' )
 # Start --add-opens options
diff --git a/src/pulsar-io-gen.sh b/src/pulsar-io-gen.sh
index a3083e8f2b549..9f5b1a6058c7b 100755
--- a/src/pulsar-io-gen.sh
+++ b/src/pulsar-io-gen.sh
@@ -108,7 +108,7 @@ fi
 
 PULSAR_CLASSPATH="$PULSAR_JAR:$PULSAR_HOME/pulsar-io/docs/target/pulsar-io-docs.jar:$PULSAR_CLASSPATH:$PULSAR_EXTRA_CLASSPATH"
 PULSAR_CLASSPATH="`dirname $PULSAR_LOG_CONF`:$PULSAR_CLASSPATH"
-OPTS="$OPTS -Dlog4j.configurationFile=`basename $PULSAR_LOG_CONF` -Djava.net.preferIPv4Stack=true"
+OPTS="-Djava.net.preferIPv4Stack=true $OPTS -Dlog4j.configurationFile=`basename $PULSAR_LOG_CONF`"
 
 OPTS="-cp $PULSAR_CLASSPATH $OPTS"
 OPTS="$OPTS $PULSAR_EXTRA_OPTS"