diff --git a/routers/api/v1/repo/wiki.go b/routers/api/v1/repo/wiki.go
index a61e9dc68..02c367d5e 100644
--- a/routers/api/v1/repo/wiki.go
+++ b/routers/api/v1/repo/wiki.go
@@ -174,6 +174,11 @@ func CreateWiki(ctx *context.APIContext) {
 		return
 	}
 	wikiRepo, commit, _ := webWiki.FindWikiRepoCommit(ctx.Context)
+	defer func() {
+		if wikiRepo != nil {
+			wikiRepo.Close()
+		}
+	}()
 	data, entry, pageFilename, _ := webWiki.WikiContentsByName(ctx.Context, commit, form.Name)
 	metas := ctx.Repo.Repository.ComposeDocumentMetas()
 
@@ -256,6 +261,11 @@ func GetWiki(ctx *context.APIContext) {
 	//     "$ref": "#/responses/Wiki"
 
 	wikiRepo, commit, _ := webWiki.FindWikiRepoCommit(ctx.Context)
+	defer func() {
+		if wikiRepo != nil {
+			wikiRepo.Close()
+		}
+	}()
 
 	wikiCloneWiki := ctx.Repo.Repository.WikiCloneLink()
 
@@ -366,6 +376,11 @@ func EditWiki(ctx *context.APIContext) {
 		return
 	}
 	wikiRepo, commit, _ := webWiki.FindWikiRepoCommit(ctx.Context)
+	defer func() {
+		if wikiRepo != nil {
+			wikiRepo.Close()
+		}
+	}()
 
 	if _, _, _, noEntry := webWiki.WikiContentsByName(ctx.Context, commit, oldWikiName); noEntry {
 		ctx.Error(http.StatusNotFound, "WikiNotFound", "wiki不存在")
@@ -385,7 +400,12 @@ func EditWiki(ctx *context.APIContext) {
 		ctx.Error(http.StatusInternalServerError, "EditWikiPage", err)
 		return
 	}
-	_, newCommit, _ := webWiki.FindWikiRepoCommit(ctx.Context)
+	wikiRepo, newCommit, _ := webWiki.FindWikiRepoCommit(ctx.Context)
+	defer func() {
+		if wikiRepo != nil {
+			wikiRepo.Close()
+		}
+	}()
 	data, entry, pageFilename, _ := webWiki.WikiContentsByName(ctx.Context, newCommit, newWikiName)
 	c, err := wikiRepo.GetCommitByPath(entry.Name())
 	if err != nil {