diff --git a/.sonarcloud.properties b/.sonarcloud.properties
index 98a487f3c..3a9937a7b 100644
--- a/.sonarcloud.properties
+++ b/.sonarcloud.properties
@@ -1,3 +1,3 @@
 # Disable specific duplicate code since it would introduce more complexity to reduce it.
-sonar.cpd.exclusions=src/models/**/*.ts
+sonar.cpd.exclusions=src/models/**/*.ts,src/spec-types/*.ts
 sonar.exclusions=test/**/*
diff --git a/src/spec-types/v3.ts b/src/spec-types/v3.ts
index dfad71f7f..766df3bf9 100644
--- a/src/spec-types/v3.ts
+++ b/src/spec-types/v3.ts
@@ -297,7 +297,6 @@ export type SecuritySchemaLocation =
   | 'password'
   | 'query'
   | 'header'
-  | 'header'
   | 'cookie';
 
 export interface SecuritySchemeObjectBase extends SpecificationExtensions {