diff --git a/.github/workflows/shortify-git-revision.yaml b/.github/workflows/shortify-git-revision.yaml
index 600c21c..0ea2a7c 100644
--- a/.github/workflows/shortify-git-revision.yaml
+++ b/.github/workflows/shortify-git-revision.yaml
@@ -27,6 +27,19 @@ jobs:
         shell: bash
 
       # Test 2
+      - name: Shortify an existing git revision with prefix
+        uses: ./
+        with:
+          name: ROOT_COMMIT
+          revision: 88428f56bd9d2751c47106bedfd148162dfa50b8
+          prefix: CI_
+      - name: Validate // Shortify an existing git revision with prefix
+        run: |
+          [[ "${{ env.ROOT_COMMIT }}" == "${{ env.CI_ROOT_COMMIT }}" ]]
+          [[ "${{ env.ROOT_COMMIT_SHORT }}" == "${{ env.CI_ROOT_COMMIT_SHORT }}" ]]
+        shell: bash
+
+      # Test 3
       - name: Shortify an existing git revision from an env variable
         uses: ./
         with:
@@ -39,7 +52,7 @@ jobs:
           [[ "${{ env.ENV_VAR_COMMIT_SHORT }}" == "88428f5" ]]
         shell: bash
 
-      # Test 3
+      # Test 4
       - name: Shortify a missing git revision
         uses: ./
         with:
@@ -51,7 +64,7 @@ jobs:
           [[ -z "${{ env.MISSING_REVISION_SHORT }}" ]]
         shell: bash
 
-      # Test 4
+      # Test 5
       - id: test-shortify-wrong-git-revision
         name: Shortify a wrong git revision
         uses: ./
@@ -67,7 +80,7 @@ jobs:
           [[ "${{ steps.test-shortify-wrong-git-revision.conclusion }}" == "success" ]]
         shell: bash
 
-      # Test 5
+      # Test 6
       - name: Shortify a wrong git revision without failing
         uses: ./
         with:
diff --git a/README.md b/README.md
index a7ab0b0..192deab 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,20 @@ If a revision is a bad revision, this action will produce an error message and f
 
   - `GITHUB_SHA_SHORT`
 
+- Shortify an environment variable with prefix
+
+  ```yaml
+  - uses: rlespinasse/shortify-git-revision@v1.x
+    with:
+      name: GITHUB_SHA
+      prefix: CI_
+  ```
+
+  Will make available
+
+  - `CI_GITHUB_SHA`
+  - `CI_GITHUB_SHA_SHORT`
+
 - Shortify any revision
 
   ```yaml
@@ -53,3 +67,9 @@ This input is _Optional_.
 If the input is set to `true`, this action will not fail on a bad revision
 
 The default value is `false`.
+
+### `prefix`
+
+The value will be prepend to each generated variable.
+
+This input is _Optional_.
diff --git a/action.yml b/action.yml
index a6d6686..babc789 100644
--- a/action.yml
+++ b/action.yml
@@ -12,6 +12,10 @@ inputs:
     description: "Don't fail the action if the git revision isn't valid"
     default: "false"
     required: false
+  prefix:
+    description: "Value to prepend to each generated variable"
+    default: ""
+    required: false
 branding:
   icon: "crop"
   color: "gray-dark"
@@ -24,3 +28,4 @@ runs:
         INPUT_NAME: ${{ inputs.name }}
         INPUT_REVISION: ${{ inputs.revision }}
         INPUT_CONTINUE_ON_ERROR: ${{ inputs.continue-on-error }}
+        INPUT_PREFIX: ${{ inputs.prefix }}
diff --git a/shortify.sh b/shortify.sh
index f9b53f2..0633fc7 100755
--- a/shortify.sh
+++ b/shortify.sh
@@ -4,8 +4,10 @@ if [[ "$OSTYPE" == "darwin"* ]]; then
   # On MacOS,
   # bash don't support substitution, so we use 'tr'
   NAME=$(echo "$INPUT_NAME" | tr '[:lower:]' '[:upper:]')
+  PREFIX=$(echo "$INPUT_PREFIX" | tr '[:lower:]' '[:upper:]')
 else
   NAME=${INPUT_NAME^^}
+  PREFIX=${INPUT_PREFIX^^}
 fi
 REVISION=${INPUT_REVISION:-${!NAME}}
 
@@ -15,8 +17,8 @@ fi
 
 if [ "$(git cat-file -e "$REVISION" 2>&1)" == "" ]; then
   {
-    echo "${NAME}=${REVISION}"
-    echo "${NAME}_SHORT=$(git rev-parse --short "$REVISION")"
+    echo "${PREFIX}${NAME}=${REVISION}"
+    echo "${PREFIX}${NAME}_SHORT=$(git rev-parse --short "$REVISION")"
   } >>"$GITHUB_ENV"
 elif [ "${INPUT_CONTINUE_ON_ERROR}" == "false" ]; then
   echo "::error ::Invalid revision: $REVISION from $NAME"