diff --git a/source/blender/blenkernel/intern/mball_tessellate.cc b/source/blender/blenkernel/intern/mball_tessellate.cc
index 12ed0fc0fc9..60da256368a 100644
--- a/source/blender/blenkernel/intern/mball_tessellate.cc
+++ b/source/blender/blenkernel/intern/mball_tessellate.cc
@@ -39,8 +39,8 @@
 
 #include "BLI_strict_flags.h"
 
-/* experimental (faster) normal calculation */
-// #define USE_ACCUM_NORMAL
+/* experimental (faster) normal calculation (see #103021) */
+#define USE_ACCUM_NORMAL
 
 #define MBALL_ARRAY_LEN_INIT 4096