diff --git a/models/issues/reaction.go b/models/issues/reaction.go
index 293dfa3fd11..28da696366e 100644
--- a/models/issues/reaction.go
+++ b/models/issues/reaction.go
@@ -377,7 +377,7 @@ func (list ReactionList) GetFirstUsers() string {
 		if buffer.Len() > 0 {
 			buffer.WriteString(", ")
 		}
-		buffer.WriteString(reaction.User.DisplayName())
+		buffer.WriteString(reaction.User.Name)
 		if rem--; rem == 0 {
 			break
 		}
diff --git a/models/issues/reaction_test.go b/models/issues/reaction_test.go
index ddd0e2d04c0..e397568ac03 100644
--- a/models/issues/reaction_test.go
+++ b/models/issues/reaction_test.go
@@ -109,7 +109,7 @@ func TestIssueReactionCount(t *testing.T) {
 	reactions := reactionsList.GroupByType()
 	assert.Len(t, reactions["heart"], 4)
 	assert.Equal(t, 2, reactions["heart"].GetMoreUserCount())
-	assert.Equal(t, user1.DisplayName()+", "+user2.DisplayName(), reactions["heart"].GetFirstUsers())
+	assert.Equal(t, user1.Name+", "+user2.Name, reactions["heart"].GetFirstUsers())
 	assert.True(t, reactions["heart"].HasUser(1))
 	assert.False(t, reactions["heart"].HasUser(5))
 	assert.False(t, reactions["heart"].HasUser(0))