diff --git a/models/helper_environment.go b/models/helper_environment.go
index 283584cc5238d..e4aee31f22d28 100644
--- a/models/helper_environment.go
+++ b/models/helper_environment.go
@@ -25,7 +25,7 @@ func PushingEnvironment(doer *User, repo *Repository) []string {
 		"GIT_COMMITTER_NAME="+sig.Name,
 		"GIT_COMMITTER_EMAIL="+sig.Email,
 		EnvRepoName+"="+repo.Name,
-		EnvRepoUsername+"="+repo.OwnerName,
+		EnvRepoUsername+"="+repo.MustOwnerName(),
 		EnvRepoIsWiki+"="+isWiki,
 		EnvPusherName+"="+doer.Name,
 		EnvPusherID+"="+fmt.Sprintf("%d", doer.ID),