diff --git a/oam/install_scripts/post-mysql-install b/oam/install_scripts/post-mysql-install
index de2d920da..7960c7637 100755
--- a/oam/install_scripts/post-mysql-install
+++ b/oam/install_scripts/post-mysql-install
@@ -6,7 +6,7 @@
 
 # check if running systemd
 running_systemd() {
-   if  [ ps --no-headers -o comm 1 == "systemd" ]; then
+   if  [ "$(ps --no-headers -o comm 1)" == "systemd" ]; then
        echo 0
    else
        echo 1