diff --git a/src/parser.cpp b/src/parser.cpp
index 363eb0c55..94c6083f7 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -6424,6 +6424,7 @@ gb_internal u64 parse_feature_tag(Token token_for_pos, String s) {
 				switch (flag) {
 				case OptInFeatureFlag_IntegerDivisionByZero_Trap:
 				case OptInFeatureFlag_IntegerDivisionByZero_Zero:
+				case OptInFeatureFlag_IntegerDivisionByZero_AllBits:
 					syntax_error(token_for_pos, "Feature flag does not support notting with '!' - '%.*s'", LIT(p));
 					break;
 				}
@@ -6436,6 +6437,7 @@ gb_internal u64 parse_feature_tag(Token token_for_pos, String s) {
 			error_line("\tinteger-division-by-zero:trap\n");
 			error_line("\tinteger-division-by-zero:zero\n");
 			error_line("\tinteger-division-by-zero:self\n");
+			error_line("\tinteger-division-by-zero:all-bits\n");
 			return OptInFeatureFlag_NONE;
 		}
 	}