diff --git a/src/unix/unix_sdl.c b/src/unix/unix_sdl.c
index ae5b43a9b..ee1220409 100644
--- a/src/unix/unix_sdl.c
+++ b/src/unix/unix_sdl.c
@@ -138,7 +138,7 @@ sdl_blit(int x, int y, int w, int h)
     SDL_Rect r_src;
     int ret;
 
-    if (!sdl_enabled || (h <= 0) || (render_buffer == NULL) || (sdl_render == NULL) || (sdl_tex == NULL)) {
+    if (!sdl_enabled || (h <= 0) || (buffer32 == NULL) || (sdl_render == NULL) || (sdl_tex == NULL)) {
 	video_blit_complete();
 	return;
     }
diff --git a/src/video/vid_ega.c b/src/video/vid_ega.c
index c8f2a43c1..61cf87ee0 100644
--- a/src/video/vid_ega.c
+++ b/src/video/vid_ega.c
@@ -675,10 +675,8 @@ ega_doblit(int wx, int wy, ega_t *ega)
 	bottom <<= 1;
     }
 
-    if ((wx <= 0) || (wy <= 0)) {
-	video_blit_memtoscreen(x_start, y_start, 0, 0);
+    if ((wx <= 0) || (wy <= 0))
 	return;
-    }
 
     if (ega->vres)
 	ega->y_add <<= 1;
diff --git a/src/video/vid_svga.c b/src/video/vid_svga.c
index 9615c10a0..b38353701 100644
--- a/src/video/vid_svga.c
+++ b/src/video/vid_svga.c
@@ -1361,10 +1361,8 @@ svga_doblit(int wx, int wy, svga_t *svga)
 	bottom <<= 1;
     }
 
-    if ((wx <= 0) || (wy <= 0)) {
-	video_blit_memtoscreen(x_start, y_start, 0, 0);
+    if ((wx <= 0) || (wy <= 0))
 	return;
-    }
 
     if (svga->vertical_linedbl)
 	svga->y_add <<= 1;