diff --git a/lib/types/subject/subject.dart b/lib/types/subject/subject.dart
index da0a03e..ddde847 100644
--- a/lib/types/subject/subject.dart
+++ b/lib/types/subject/subject.dart
@@ -73,7 +73,7 @@ class Subject extends Comparable<Subject> {
     }
 
     // 학기별 성적 조회
-    if ((stateAfter & STATE_SEMESTER > 0) && (STATE_CATEGORY & STATE_CATEGORY > 0)) {
+    if ((stateAfter & STATE_SEMESTER > 0) && (stateBefore & STATE_CATEGORY > 0)) {
       if (after.category.isEmpty) after.category = before.category;
       after.isPassFail = before.isPassFail;
       after.info = before.info;
diff --git a/pubspec.yaml b/pubspec.yaml
index d959de9..61968e8 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -3,7 +3,7 @@ description: 숭실대학교 학사 정보 조회 애플리케이션
 
 publish_to: 'none'
 
-version: 2.6.2+50
+version: 2.6.3+51
 
 environment:
   sdk: ">=2.17.3 <3.0.0"