diff --git a/routers/api/v1/admin/runners.go b/routers/api/v1/admin/runners.go
index 7c38b4e84e0..518888f3813 100644
--- a/routers/api/v1/admin/runners.go
+++ b/routers/api/v1/admin/runners.go
@@ -18,7 +18,7 @@ func GetRegistrationToken(ctx *context.APIContext) {
 	// produces:
 	// - application/json
 	// parameters:
-	// - name: set-token
+	// - name: set_token
 	//   in: body
 	//   description: set a runner register token instead of generating one.
 	//   type: string
diff --git a/routers/api/v1/org/action.go b/routers/api/v1/org/action.go
index baee309ddd2..78b2e4bf7e4 100644
--- a/routers/api/v1/org/action.go
+++ b/routers/api/v1/org/action.go
@@ -182,7 +182,7 @@ func (Action) GetRegistrationToken(ctx *context.APIContext) {
 	//   description: name of the organization
 	//   type: string
 	//   required: true
-	// - name: set-token
+	// - name: set_token
 	//   in: body
 	//   description: set a runner register token instead of generating one.
 	//   type: string
diff --git a/routers/api/v1/repo/action.go b/routers/api/v1/repo/action.go
index 980843cdf99..a161b05a216 100644
--- a/routers/api/v1/repo/action.go
+++ b/routers/api/v1/repo/action.go
@@ -500,7 +500,7 @@ func (Action) GetRegistrationToken(ctx *context.APIContext) {
 	//   description: name of the repo
 	//   type: string
 	//   required: true
-	// - name: set-token
+	// - name: set_token
 	//   in: body
 	//   description: set a runner register token instead of generating one.
 	//   type: string
diff --git a/routers/api/v1/shared/runners.go b/routers/api/v1/shared/runners.go
index 77e5c70edfc..97be75fc859 100644
--- a/routers/api/v1/shared/runners.go
+++ b/routers/api/v1/shared/runners.go
@@ -19,7 +19,7 @@ type RegistrationToken struct {
 }
 
 func GetRegistrationToken(ctx *context.APIContext, ownerID, repoID int64) {
-	setToken := ctx.FormString("set-token")
+	setToken := ctx.FormString("set_token")
 	var token *actions_model.ActionRunnerToken
 	var err error
 	if setToken == "" {
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index 2a21c657c07..0d0fc39d1d7 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/templates/swagger/v1_json.tmpl
@@ -406,7 +406,7 @@
           {
             "type": "string",
             "description": "set a runner register token instead of generating one.",
-            "name": "set-token",
+            "name": "set_token",
             "in": "body"
           }
         ],
@@ -1714,7 +1714,7 @@
           {
             "type": "string",
             "description": "set a runner register token instead of generating one.",
-            "name": "set-token",
+            "name": "set_token",
             "in": "body"
           }
         ],
@@ -3909,7 +3909,7 @@
           {
             "type": "string",
             "description": "set a runner register token instead of generating one.",
-            "name": "set-token",
+            "name": "set_token",
             "in": "body"
           }
         ],