diff --git a/data/dictionary/STCharacters.txt b/data/dictionary/STCharacters.txt
index 8ca05f317..396ff7790 100644
--- a/data/dictionary/STCharacters.txt
+++ b/data/dictionary/STCharacters.txt
@@ -268,7 +268,7 @@
 冢	冢 塚
 冬	冬 鼕
 冯	馮
-冲	衝 沖
+冲	沖 衝
 决	決
 况	況
 冻	凍
diff --git a/test/testcases/testcases.json b/test/testcases/testcases.json
index 95a95e0b7..4efe71dd0 100755
--- a/test/testcases/testcases.json
+++ b/test/testcases/testcases.json
@@ -1825,6 +1825,16 @@
         "tw2sp": "干红",
         "hk2sp": "干红"
       }
+    },
+    {
+      "id": "BYVoid_OpenCC_Issue_984_chong_variant_priority",
+      "input": "冲咖啡、冲洗、冲水，再用清水一冲就能清除了。冲突、冲动、冲锋、缓冲、兴冲冲",
+      "expected": {
+        "s2t": "沖咖啡、沖洗、沖水，再用清水一衝就能清除了。衝突、衝動、衝鋒、緩衝、興沖沖",
+        "s2tw": "沖咖啡、沖洗、沖水，再用清水一衝就能清除了。衝突、衝動、衝鋒、緩衝、興沖沖",
+        "s2twp": "沖咖啡、沖洗、沖水，再用清水一衝就能清除了。衝突、衝動、衝鋒、緩衝、興沖沖",
+        "s2hk": "沖咖啡、沖洗、沖水，再用清水一衝就能清除了。衝突、衝動、衝鋒、緩衝、興沖沖"
+      }
     }
   ]
 }