diff --git a/opts.c b/opts.c
index 44919b8..548381a 100644
--- a/opts.c
+++ b/opts.c
@@ -65,7 +65,7 @@ static void opts_setdefault() {
     opts_set(opts.flags, FTEPP_PREDEFS,                  false);
     opts_set(opts.flags, CORRECT_TERNARY,                true);
     opts_set(opts.flags, BAIL_ON_WERROR,                 true);
-    opts_set(opts.flags, ENHANCED_DIAGNOSTICS,           false);
+    opts_set(opts.flags, ENHANCED_DIAGNOSTICS,           true);
 }
 
 void opts_init(const char *output, int standard, size_t arraysize) {