diff --git a/packages/frontend/src/components/MkPostForm.vue b/packages/frontend/src/components/MkPostForm.vue
index c16ef3341427..ba988ee71512 100644
--- a/packages/frontend/src/components/MkPostForm.vue
+++ b/packages/frontend/src/components/MkPostForm.vue
@@ -251,7 +251,7 @@ const canPost = computed((): boolean => {
 			quoteId.value != null
 		) &&
 		(textLength.value <= maxTextLength.value) &&
-		(files.value.length > 16) &&
+		(files.value.length <= 16) &&
 		(!poll.value || poll.value.choices.length >= 2);
 });