diff --git a/README.md b/README.md
index eb91778..59c7b49 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ The following parameters can be used in your custom action configuration.
 | dependencies | :x: | 'requirements.txt' |  Path for the repositories 'requirements.txt'. If you have none, you may skip this.|
 | branch | :white_check_mark: | - | The specific branch you want to merge into. Use ${{ github.head_ref }} if you want to use this with pull requests. |
 | checkpath | :x: | '.' | The path autopep8 checks |
-| autoparameters | :x: | - | Parameters to use with autopep8 |
+| autoparameters | :x: | ' ' | Parameters to use with autopep8 |
 
 ### Example
 
diff --git a/action.yml b/action.yml
index 148588f..f45f6dc 100644
--- a/action.yml
+++ b/action.yml
@@ -29,6 +29,7 @@ inputs:
   autoparameters:
     description: Parameters for autopep8
     required: false
+    default: ''
 
 runs:
   using: 'docker'
diff --git a/entrypoint.sh b/entrypoint.sh
index 13e7a2c..4555503 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -28,7 +28,7 @@ pip install -r $INPUT_DEPENDENCIES || echo "No dependency file found."
 
 # Apply PEP 8
 echo "Running autopep8..."
-autopep8 -i -r "$INPUT_CHECKPATH" ${INPUT_AUTOPARAMETERS:+"$INPUT_AUTOPARAMETERS"} || echo "Problem running autopep8."
+autopep8 -i -r $INPUT_CHECKPATH $INPUT_AUTOPARAMETERS || echo "Problem running autopep8!"
 
 if ! git diff --quiet
 then