diff --git a/include/pokemon.h b/include/pokemon.h
index d37e5f4ae9..584b5d2895 100644
--- a/include/pokemon.h
+++ b/include/pokemon.h
@@ -499,6 +499,7 @@ struct MoveInfo
     u32 ignoresSubstitute:1;
     u32 forcePressure:1;
     u32 cantUseTwice:1;
+    u32 doesntAffectDynamax:1,
 
     // Ban flags
     u32 gravityBanned:1;