diff --git a/OSBindings/Mac/Clock Signal/Documents/Atari2600Document.swift b/OSBindings/Mac/Clock Signal/Documents/Atari2600Document.swift
index 071a44db1..6c586c360 100644
--- a/OSBindings/Mac/Clock Signal/Documents/Atari2600Document.swift	
+++ b/OSBindings/Mac/Clock Signal/Documents/Atari2600Document.swift	
@@ -77,11 +77,6 @@ class Atari2600Document: MachineDocument {
 			atari2600.setState(true, forDigitalInput: input)
 		}
 
-		if event.keyCode == 49 {
-			self.runForNumberOfCycles(Int32(self.intendedCyclesPerSecond / 60))
-			self.openGLView.drawViewOnlyIfDirty(true)
-		}
-
 		if event.keyCode == 36 {
 			atari2600.setResetLineEnabled(true)
 		}
diff --git a/OSBindings/Mac/Clock Signal/Views/CSOpenGLView.h b/OSBindings/Mac/Clock Signal/Views/CSOpenGLView.h
index dad53987d..f5c821fe8 100644
--- a/OSBindings/Mac/Clock Signal/Views/CSOpenGLView.h	
+++ b/OSBindings/Mac/Clock Signal/Views/CSOpenGLView.h	
@@ -75,6 +75,4 @@
 
 - (void)performWithGLContext:(nonnull dispatch_block_t)action;
 
-- (void)drawViewOnlyIfDirty:(BOOL)onlyIfDirty;
-
 @end