diff --git a/src/detect-engine-register.h b/src/detect-engine-register.h
index a6a8d1cd1d..2edfaaa94f 100644
--- a/src/detect-engine-register.h
+++ b/src/detect-engine-register.h
@@ -24,7 +24,7 @@
 #ifndef __DETECT_ENGINE_REGISTER_H__
 #define __DETECT_ENGINE_REGISTER_H__
 
-enum {
+enum DetectKeywordId {
     DETECT_SID,
     DETECT_PRIORITY,
     DETECT_REV,