--- dmd/src/dmd/mars.d
+++ dmd/src/dmd/mars.d
@@ -1374,7 +1374,7 @@ void addDefaultVersionIdentifiers()
     }
     else static if (TARGET.Linux)
     {
-        VersionCondition.addPredefinedGlobalIdent("CRuntime_Glibc");
+        VersionCondition.addPredefinedGlobalIdent("CRuntime_Musl");
     }
 
     if (global.params.isLP64)
