diff --git a/scripts/core/sxmo_common.sh b/scripts/core/sxmo_common.sh
index 3a29e7f..7af02b0 100644
--- a/scripts/core/sxmo_common.sh
+++ b/scripts/core/sxmo_common.sh
@@ -4,7 +4,7 @@
 # and defines some common settings
 
 # Small optimization to guard against including the script unnecessarily
-[ "$SXMO_COMMON_INCLUDED" -eq 1 ] && return 0;
+[ "$SXMO_COMMON_INCLUDED" = "1" ] && return 0;
 
 # we disable shellcheck SC2034 (variable not used)
 # for all the variables we define here