diff --git a/action.yaml b/action.yaml
index 37e3d84..f756c3a 100644
--- a/action.yaml
+++ b/action.yaml
@@ -11,7 +11,7 @@ inputs:
     description: >
       User used for host authentication.
     default: pages
-  hostkey:
+  host-key:
     description: >
       SSH host key fingerprint of the specified host, including the key type.
       If this does not match the host key fingerprint upon invocation of ssh,
@@ -42,7 +42,7 @@ runs:
       env:
         INPUT_HOST: ${{ inputs.host }}
         INPUT_HOST_USER: ${{ inputs.host-user }}
-        INPUT_HOST_KEY: ${{ inputs.hostkey }}
+        INPUT_HOST_KEY: ${{ inputs.host-key }}
         INPUT_SSH_KEY: ${{ inputs.ssh-key }}
         INPUT_DIRECTORY: ${{ inputs.directory }}
         INPUT_INDEX: ${{ inputs.index }}