diff --git a/src/textures/image.cpp b/src/textures/image.cpp
index 04d0833c0e..f047b8137b 100644
--- a/src/textures/image.cpp
+++ b/src/textures/image.cpp
@@ -269,6 +269,7 @@ FBitmap FImageSource::GetCachedBitmap(PalEntry *remap, int conversion, int *ptra
 			}
 		}
 	}
+	if (ptrans) *ptrans = trans;
 	return ret;
 }