diff --git a/src/detect-icode.c b/src/detect-icode.c
index 0149e546c2..7fe808433a 100644
--- a/src/detect-icode.c
+++ b/src/detect-icode.c
@@ -70,6 +70,7 @@ void DetectICodeRegister (void)
 #endif
     sigmatch_table[DETECT_ICODE].SupportsPrefilter = PrefilterICodeIsPrefilterable;
     sigmatch_table[DETECT_ICODE].SetupPrefilter = PrefilterSetupICode;
+    sigmatch_table[DETECT_ICODE].flags = SIGMATCH_SUPPORT_FIREWALL;
 }
 
 /**