diff --git a/desmume/src/windows/main.h b/desmume/src/windows/main.h
index f012eaaef..99da12172 100644
--- a/desmume/src/windows/main.h
+++ b/desmume/src/windows/main.h
@@ -18,7 +18,6 @@ void AviEnd();
 void WavRecordTo();
 void WavEnd();
 
-extern bool ShowInputDisplay;
 extern bool frameCounterDisplay;
 extern bool FpsDisplay;
 extern bool ShowInputDisplay;