diff --git a/opts.def b/opts.def
index 5f74e1c..87aaf36 100644
--- a/opts.def
+++ b/opts.def
@@ -40,6 +40,9 @@
     GMQCC_DEFINE_FLAG(LNO)
     GMQCC_DEFINE_FLAG(CORRECT_TERNARY)
     GMQCC_DEFINE_FLAG(SINGLE_VECTOR_DEFS)
+    GMQCC_DEFINE_FLAG(CORRECT_LOGIC)
+    GMQCC_DEFINE_FLAG(TRUE_EMPTY_STRINGS)
+    GMQCC_DEFINE_FLAG(FALSE_EMPTY_STRINGS)
 #endif
 
 /* warning flags */