diff --git a/src/spritecache.cpp b/src/spritecache.cpp
index 964bcc71380..b08231aaf10 100644
--- a/src/spritecache.cpp
+++ b/src/spritecache.cpp
@@ -125,6 +125,9 @@ struct SpriteCache {
 	void RemoveByMissingZoomLevels(uint8 lvls)
 	{
 		Sprite *base = this->GetSpritePtr();
+		if (base == nullptr) {
+			return;
+		}
 		if (base->missing_zoom_levels == lvls) {
 			/* erase top level entry */
 			this->ptr.reset(base->next);