diff --git a/setup/so-setup b/setup/so-setup
index 8ee236bf1..1b54241bd 100755
--- a/setup/so-setup
+++ b/setup/so-setup
@@ -741,7 +741,7 @@ fi
 			set_progress_str 81 "$(print_salt_state_apply 'strelka')"
 			salt-call state.apply -l info strelka >> $setup_log 2>&1
 		fi
-		if [[ $STRELKARULES == 1 ]]; then
+		if [[ "$STRELKARULES" == 1 ]]; then
 			/usr/sbin/so-yara-update >> $setup_log 2>&1	
 		fi
 	fi