diff --git a/DataStructures/HashTable.h b/DataStructures/HashTable.h
index 9d58e04d0..068863c2a 100644
--- a/DataStructures/HashTable.h
+++ b/DataStructures/HashTable.h
@@ -52,6 +52,7 @@ public:
 		return true;
 	}
 	void EraseAll() {
+	    if(table.size() > 0)
 		table.clear();
 	}
 private: