diff --git a/src/gui/components/cc_item_progressbar.cpp b/src/gui/components/cc_item_progressbar.cpp
index 570bb0de9..d3ea4831f 100644
--- a/src/gui/components/cc_item_progressbar.cpp
+++ b/src/gui/components/cc_item_progressbar.cpp
@@ -198,6 +198,7 @@ void CProgressBarCache::pbcClear()
 		if ((*it)->pbc_passive)
 			free((*it)->pbc_passive);
 		delete (*it);
+		(*it) = NULL;
 	}
 	pbCache.clear();
 }