diff --git a/src/kits/interface/Slider.cpp b/src/kits/interface/Slider.cpp
index e62575a2d6..46744953fa 100644
--- a/src/kits/interface/Slider.cpp
+++ b/src/kits/interface/Slider.cpp
@@ -755,6 +755,7 @@ BSlider::DrawSlider()
 			DrawBitmap(fOffScreenBits, B_ORIGIN);
 		}
 #endif
+		UnlockLooper();
 	}
 }