diff --git a/README.md b/README.md
index 243e2b2..1dba13b 100644
--- a/README.md
+++ b/README.md
@@ -61,11 +61,11 @@ on:
 
 ## Outputs
 
-|   Output             |    type     |  Example          |  Description                                     |
-|:--------------------:|:-----------:|:-----------------:|:------------------------------------------------:|
-|  base_ref_branch     |  `string`   |    `main`         |  The target branch of a pull request             |
-|  head_ref_branch     |  `string`   |    `feature/test` |  The source branch of a pull request             |
-|  ref_branch          |  `string`   |    `1/merge`      |  The branch that triggered the workflow run      |
+|   Output             |    type     |  Example              |  Description                                     |
+|:--------------------:|:-----------:|:---------------------:|:------------------------------------------------:|
+|  base_ref_branch     |  `string`   |    `main`             |  The target branch of a pull request             |
+|  head_ref_branch     |  `string`   |    `feature/test`     |  The source branch of a pull request             |
+|  ref_branch          |  `string`   |    `1/merge` | `main` |  The branch that triggered the workflow run      |
 
 
 
diff --git a/action.yml b/action.yml
index ae4359e..b324367 100644
--- a/action.yml
+++ b/action.yml
@@ -40,7 +40,8 @@ runs:
         export REF=${{ inputs.ref }}
         echo "::set-output name=base_ref_branch::${BASE_REF/refs\/heads\//}"
         echo "::set-output name=head_ref_branch::${HEAD_REF/refs\/heads\//}"
-        echo "::set-output name=ref_branch::${REF/refs\/pull\//}"
+        REF_BRANCH=${REF/refs\/pull\//}
+        echo "::set-output name=ref_branch::${REF_BRANCH/refs\/heads\//}"
       shell: bash
 branding:
   icon: git-branch