diff --git a/functions/openhab.bash b/functions/openhab.bash
index ded527bc7..b0432662a 100644
--- a/functions/openhab.bash
+++ b/functions/openhab.bash
@@ -184,9 +184,9 @@ openhab_shell_interfaces() {
 ##
 openhab_clean_cache() {
   echo -n "$(timestamp) [openHABian] Cleaning the openHAB cache... "
-  if ! cond_redirect systemctl stop "${ohPkgName}".service; then echo "FAILED (stop service)"; return 1; fi
+  if ! cond_redirect systemctl stop ${ohPkgName}.service; then echo "FAILED (stop service)"; return 1; fi
   if ! cond_redirect openhab-cli clean-cache; then echo "FAILED (clean)"; return 1; fi
-  if cond_redirect systemctl restart "${ohPkgName}".service; then echo "OK"; else echo "FAILED (restart service)"; return 1; fi
+  if cond_redirect systemctl restart ${ohPkgName}.service; then echo "OK"; else echo "FAILED (restart service)"; return 1; fi
 }
 
 ## Function to download and install special vim syntax for openHAB files.