diff --git a/src/client/mapblock_mesh.cpp b/src/client/mapblock_mesh.cpp
index f9332e39987a..c7790f1e47b9 100644
--- a/src/client/mapblock_mesh.cpp
+++ b/src/client/mapblock_mesh.cpp
@@ -394,7 +394,9 @@ static void getNodeVertexDirs(const v3s16 &dir, v3s16 *vertex_dirs)
 
 #if defined(__GNUC__) && !defined(__clang__)
 #pragma GCC diagnostic push
+#if __GNUC__ > 7
 #pragma GCC diagnostic ignored "-Wclass-memaccess"
+#endif
 #endif
 	memcpy(vertex_dirs, &vertex_dirs_table[idx], 4 * sizeof(v3s16));
 #if defined(__GNUC__) && !defined(__clang__)