diff --git a/common/HeapArray.h b/common/HeapArray.h
index e57c5f699a..eaf3df0f05 100644
--- a/common/HeapArray.h
+++ b/common/HeapArray.h
@@ -362,7 +362,7 @@ private:
 
 			if (prev_ptr)
 			{
-				std::memcpy(m_data, prev_ptr, prev_size * sizeof(T));
+				std::memcpy(m_data, prev_ptr, std::min(size, prev_size) * sizeof(T));
 				std::free(prev_ptr);
 			}
 #endif