diff --git a/dmd/func.c b/dmd/func.c
index 6b569beb..62e7ee27 100644
--- a/dmd/func.c
+++ b/dmd/func.c
@@ -3277,7 +3277,11 @@ Dsymbol *UnitTestDeclaration::syntaxCopy(Dsymbol *s)
 
 void UnitTestDeclaration::semantic(Scope *sc)
 {
+#if IN_LLVM
+    if (global.params.useUnitTests && sc->module->isRoot)
+#else
     if (global.params.useUnitTests)
+#endif
     {
         if (!type)
             type = new TypeFunction(NULL, Type::tvoid, FALSE, LINKd);