diff --git a/src/ui/pokedex-page-ui-handler.ts b/src/ui/pokedex-page-ui-handler.ts
index 93f33cf3555..17e95d43aa3 100644
--- a/src/ui/pokedex-page-ui-handler.ts
+++ b/src/ui/pokedex-page-ui-handler.ts
@@ -1132,6 +1132,8 @@ export default class PokedexPageUiHandler extends MessageUiHandler {
 
             if (!isCaught || !isFormCaught) {
               error = true;
+            } else if (this.tmMoves.length < 1) {
+              error = true;
             } else {
               this.blockInput = true;