diff --git a/stack.sh b/stack.sh
index 6cde9da1cf..022398d0de 100755
--- a/stack.sh
+++ b/stack.sh
@@ -1089,7 +1089,7 @@ if is_service_enabled nova; then
         # Define extra baremetal nova conf flags by defining the array ``EXTRA_BAREMETAL_OPTS``.
         for I in "${EXTRA_BAREMETAL_OPTS[@]}"; do
            # Attempt to convert flags to options
-           iniset $NOVA_CONF baremetal ${I//=/ }
+           iniset $NOVA_CONF baremetal ${I/=/ }
         done
 
     # Default