diff --git a/demos/tuidemo.c b/demos/tuidemo.c
index 8eb4cfce..ac47324d 100644
--- a/demos/tuidemo.c
+++ b/demos/tuidemo.c
@@ -19,7 +19,7 @@
 
 /* change this if source at other location */
 
-# define FNAME  "../demos/tui.c"
+#define FNAME "../demos/tui.c"
 
 /**************************** strings entry box ***************************/