diff --git a/src/win/win_opengl.c b/src/win/win_opengl.c
index 99843cd9f..9bb13561d 100644
--- a/src/win/win_opengl.c
+++ b/src/win/win_opengl.c
@@ -872,6 +872,8 @@ static void opengl_main(void* param)
 
 static void opengl_blit(int x, int y, int w, int h)
 {
+	int row;
+
 	if ((x < 0) || (y < 0) || (w <= 0) || (h <= 0) || (w > 2048) || (h > 2048) || (buffer32 == NULL) || (thread == NULL) ||
 		atomic_flag_test_and_set(&blit_info[write_pos].in_use))
 	{
@@ -879,7 +881,8 @@ static void opengl_blit(int x, int y, int w, int h)
 		return;
 	}
 
-	video_copy(blit_info[write_pos].buffer, &(buffer32->line[y][x]), h * ROW_LENGTH * sizeof(uint32_t));
+	for (row = 0; row < h; ++row)
+		video_copy(&(((uint8_t *) blit_info[write_pos].buffer)[row * ROW_LENGTH * sizeof(uint32_t)]), &(buffer32->line[y + row][x]), w * sizeof(uint32_t));
 
 	if (screenshots)
 		video_screenshot(blit_info[write_pos].buffer, 0, 0, ROW_LENGTH);
diff --git a/src/win/win_sdl.c b/src/win/win_sdl.c
index 4fc735a1c..cf5afb809 100644
--- a/src/win/win_sdl.c
+++ b/src/win/win_sdl.c
@@ -274,6 +274,7 @@ sdl_blit_ex(int x, int y, int w, int h)
     SDL_Rect r_src;
     void *pixeldata;
     int pitch, ret;
+    int row;
 
     if (!sdl_enabled || (x < 0) || (y < 0) || (w <= 0) || (h <= 0) || (w > 2048) || (h > 2048) || (buffer32 == NULL) || (sdl_render == NULL) || (sdl_tex == NULL)) {
 	video_blit_complete();
@@ -284,7 +285,8 @@ sdl_blit_ex(int x, int y, int w, int h)
 
     SDL_LockTexture(sdl_tex, 0, &pixeldata, &pitch);
 
-    video_copy(pixeldata, &(buffer32->line[y][x]), h * 2048 * sizeof(uint32_t));
+    for (row = 0; row < h; ++row)
+	video_copy(&(((uint8_t *) pixeldata)[row * 2048 * sizeof(uint32_t)]), &(buffer32->line[y + row][x]), w * sizeof(uint32_t));
 
     if (screenshots)
 	video_screenshot((uint32_t *) pixeldata, 0, 0, 2048);