diff --git a/AK/HashTable.h b/AK/HashTable.h
index 88439445d50..0418af7d666 100644
--- a/AK/HashTable.h
+++ b/AK/HashTable.h
@@ -33,6 +33,7 @@ public:
     HashTable& operator=(HashTable&& other)
     {
         if (this != &other) {
+            clear();
             m_buckets = other.m_buckets;
             m_size = other.m_size;
             m_capacity = other.m_capacity;