diff --git a/src/app/components/splitbutton/splitbutton.ts b/src/app/components/splitbutton/splitbutton.ts
index 6dcb1ff7539..85af2d06800 100755
--- a/src/app/components/splitbutton/splitbutton.ts
+++ b/src/app/components/splitbutton/splitbutton.ts
@@ -115,7 +115,7 @@ export class SplitButton {
      * Defines the style of the button.
      * @group Props
      */
-    @Input() severity: 'success' | 'info' | 'warning' | 'danger' | 'help' | 'primary' | 'secondary' | 'contrast' | null | undefined;
+    @Input() severity: 'success' | 'info' | 'warn' | 'danger' | 'help' | 'primary' | 'secondary' | 'contrast' | null | undefined;
     /**
      * Add a shadow to indicate elevation.
      * @group Props
diff --git a/src/app/showcase/doc/apidoc/index.json b/src/app/showcase/doc/apidoc/index.json
index 64913dd3ba0..d62ee5bffc8 100644
--- a/src/app/showcase/doc/apidoc/index.json
+++ b/src/app/showcase/doc/apidoc/index.json
@@ -22094,7 +22094,7 @@
                             "name": "severity",
                             "optional": false,
                             "readonly": false,
-                            "type": "\"success\" | \"info\" | \"warning\" | \"primary\" | \"help\" | \"danger\" | \"secondary\" | \"contrast\"",
+                            "type": "\"success\" | \"info\" | \"warn\" | \"primary\" | \"help\" | \"danger\" | \"secondary\" | \"contrast\"",
                             "description": "Defines the style of the button."
                         },
                         {