diff --git a/src/cc65/input.c b/src/cc65/input.c
index cff63bcfc..0f254f492 100644
--- a/src/cc65/input.c
+++ b/src/cc65/input.c
@@ -42,6 +42,7 @@
 /* common */
 #include "check.h"
 #include "coll.h"
+#include "print.h"
 #include "xmalloc.h"
 
 /* cc65 */
@@ -259,6 +260,9 @@ void OpenIncludeFile (const char* Name, unsigned DirSpec)
 	return;
     }
 
+    /* Debugging output */
+    Print (stdout, 1, "Opened include file `%s'\n", IF->Name);
+
     /* Allocate a new AFile structure */
     (void) NewAFile (IF, F);
 }