diff --git a/compiler/src/dmd/tokens.d b/compiler/src/dmd/tokens.d
index e0a014e2ddbc..c5b64936a9b6 100644
--- a/compiler/src/dmd/tokens.d
+++ b/compiler/src/dmd/tokens.d
@@ -432,7 +432,7 @@ enum FirstCKeyword = TOK.inline;
 // Assert that all token enum members have consecutive values and
 // that none of them overlap
 static assert(() {
-    foreach (idx, enumName; __traits(allMembers, TOK)) {
+    static foreach (idx, enumName; __traits(allMembers, TOK)) {
         static assert(idx == __traits(getMember, TOK, enumName),
         "Error: Expected TOK.", enumName, " to be ", idx, " but is ", __traits(getMember, TOK, enumName));
     }