diff --git a/apm-backend-dist/bin/startup.sh b/apm-backend-dist/bin/startup.sh
index 875c450de..20f3b3b7c 100644
--- a/apm-backend-dist/bin/startup.sh
+++ b/apm-backend-dist/bin/startup.sh
@@ -5,6 +5,6 @@ PRGDIR=`dirname "$PRG"`
 COLLECTOR_EXE=collectorService.sh
 WEBAPP_EXE=webappService.sh
 
-exec "$PRGDIR"/"$COLLECTOR_EXE" start
+"$PRGDIR"/"$COLLECTOR_EXE"
 
-exec "$PRGDIR"/"$WEBAPP_EXE" start
+"$PRGDIR"/"$WEBAPP_EXE"
diff --git a/apm-backend-dist/bin/webappService.sh b/apm-backend-dist/bin/webappService.sh
index d36779a20..07b951b83 100644
--- a/apm-backend-dist/bin/webappService.sh
+++ b/apm-backend-dist/bin/webappService.sh
@@ -2,7 +2,7 @@
 
 PRG="$0"
 PRGDIR=`dirname "$PRG"`
-[ -z "$WEBAPP_HOME" ] && $WEBAPP_HOME=`cd "$PRGDIR/.." >/dev/null; pwd`
+[ -z "$WEBAPP_HOME" ] && WEBAPP_HOME=`cd "$PRGDIR/.." >/dev/null; pwd`
 
 WEBAPP_LOG_DIR="${WEBAPP_HOME}/logs"
 JAVA_OPTS=" -Xms256M -Xmx512M"