1 files changed, 2 insertions, 2 deletions
diff --git a/dsimple.h b/dsimple.h
index 6ef852a..0ecd10f 100644
--- a/dsimple.h
+++ b/dsimple.h
@@ -62,9 +62,9 @@ extern int screen;                           /* The current screen */
 
 void Setup_Display_And_Screen(int *, char **);
 void Close_Display(void);
-void usage(void);
+void usage(void) _X_NORETURN;
 
 #define X_USAGE "[host:display]"              /* X arguments handled by
 						 Get_Display_Name */
 
-void Fatal_Error(const char *, ...) _X_NORETURN;
+void Fatal_Error(const char *, ...) _X_NORETURN _X_ATTRIBUTE_PRINTF(1,2);