diff --git a/Makefile b/Makefile
index 79aa32f738..7a0d24c5e0 100644
--- a/Makefile
+++ b/Makefile
@@ -185,6 +185,7 @@ SWAGGER_SPEC_S_JSON := s|"basePath": *"{{AppSubUrl \| JSEscape}}/api/v1"|"basePa
 SWAGGER_EXCLUDE := code.gitea.io/sdk
 SWAGGER_NEWLINE_COMMAND := -e '$$a\'
 SWAGGER_SPEC_BRANDING := s|Gitea API|Forgejo API|g
+SWAGGER_SPEC_LICENSE := s|"name": "MIT"|"name": "This file is distributed under the MIT license for the purpose of interoperability"|
 
 TEST_MYSQL_HOST ?= mysql:3306
 TEST_MYSQL_DBNAME ?= testgitea?multiStatements=true
@@ -372,6 +373,7 @@ $(SWAGGER_SPEC): $(GO_SOURCES_NO_BINDATA)
 	$(SED_INPLACE) '$(SWAGGER_SPEC_S_TMPL)' './$(SWAGGER_SPEC)'
 	$(SED_INPLACE) $(SWAGGER_NEWLINE_COMMAND) './$(SWAGGER_SPEC)'
 	$(SED_INPLACE) '$(SWAGGER_SPEC_BRANDING)' './$(SWAGGER_SPEC)'
+	$(SED_INPLACE) '$(SWAGGER_SPEC_LICENSE)' './$(SWAGGER_SPEC)'
 
 .PHONY: swagger-check
 swagger-check: generate-swagger