diff --git a/src/gwin/slider.c b/src/gwin/slider.c
index 94d73034..0956ca8a 100644
--- a/src/gwin/slider.c
+++ b/src/gwin/slider.c
@@ -322,6 +322,7 @@ void gwinSliderDraw_Std(GWidgetObject *gw, void *param) {
 	#undef gsw
 }
 
+#if GDISP_NEED_IMAGE || defined(__DOXYGEN__)
 void gwinSliderDraw_Image(GWidgetObject *gw, void *param) {
 	#define gsw			((GSliderObject *)gw)
 	#define gi			((gdispImage *)param)
@@ -370,6 +371,7 @@ void gwinSliderDraw_Image(GWidgetObject *gw, void *param) {
 
 	#undef gsw
 }
+#endif /* GDISP_NEED_IMAGE */
 
 #endif /* GFX_USE_GWIN && GWIN_NEED_BUTTON */
 /** @} */