diff --git a/README.md b/README.md
index bc44a43..bd3f96f 100644
--- a/README.md
+++ b/README.md
@@ -197,7 +197,7 @@ can be replaced with:
 | `native-image-musl` | `'false'` | If set to `'true'`, sets up [musl] to build [static binaries][native-image-static] with GraalVM Native Image *(Linux only)*. [Example usage][native-image-musl-build] (be sure to replace `uses: ./` with `uses: graalvm/setup-graalvm@v1`). |
 | `native-image-job-reports` *) | `'false'` | If set to `'true'`, post a job summary containing a Native Image build report. |
 | `native-image-pr-reports`  *) | `'false'` | If set to `'true'`, post a comment containing a Native Image build report on pull requests. Requires `write` permissions for the [`pull-requests` scope][gha-permissions]. |
-| `native-image-pr-reports-update` *) | `'false'` | If set to `'true'`, updates old build report comment with new report on pull requests. Requires `native-image-pr-reports` to be `true` |
+| `native-image-pr-reports-update-existing` *) | `'false'` | Instead of posting another comment, update an existing PR comment with the latest Native Image build report. Requires `native-image-pr-reports` to be `true`. |
 | `components`    | `''`     | Comma-separated list of GraalVM components (e.g., `native-image` or `ruby,nodejs`) that will be installed by the [GraalVM Updater][gu]. |
 | `version` | `''` | `X.Y.Z` (e.g., `22.3.0`) for a specific [GraalVM release][releases] up to `22.3.2`<br>`mandrel-X.Y.Z.W` or `X.Y.Z.W-Final` (e.g., `mandrel-21.3.0.0-Final` or `21.3.0.0-Final`) for a specific [Mandrel release][mandrel-releases],<br>`mandrel-latest` or `latest` for the latest Mandrel stable release. |
 | `gds-token`     | `''`     | Download token for the GraalVM Download Service. If a non-empty token is provided, the action will set up GraalVM Enterprise Edition (see [GraalVM EE template](#template-for-graalvm-enterprise-edition)). |
diff --git a/action.yml b/action.yml
index ca39ddf..ea52128 100644
--- a/action.yml
+++ b/action.yml
@@ -47,7 +47,7 @@ inputs:
     required: false
     description: 'Post a comment containing a Native Image build report on pull requests.'
     default: 'false'
-  native-image-pr-reports-update:
+  native-image-pr-reports-update-existing:
     required: false
     description: 'Instead of posting another comment, update an existing PR comment with the latest Native Image build report.'
     default: 'false'
diff --git a/src/features/reports.ts b/src/features/reports.ts
index 5ae2599..fd21fd3 100644
--- a/src/features/reports.ts
+++ b/src/features/reports.ts
@@ -21,7 +21,7 @@ const DOCS_BASE =
   'https://github.com/oracle/graal/blob/master/docs/reference-manual/native-image/BuildOutput.md'
 const INPUT_NI_JOB_REPORTS = 'native-image-job-reports'
 const INPUT_NI_PR_REPORTS = 'native-image-pr-reports'
-const INPUT_NI_PR_REPORTS_UPDATE = 'native-image-pr-reports-update'
+const INPUT_NI_PR_REPORTS_UPDATE = 'native-image-pr-reports-update-existing'
 const NATIVE_IMAGE_CONFIG_FILE = join(
   tmpdir(),
   'native-image-options.properties'
@@ -150,9 +150,8 @@ export async function generateReports(): Promise<void> {
       }
       return createPRComment(report)
     } else if (arePRReportsUpdateEnabled()) {
-      core.error('Build report summary:')
       throw new Error(
-        `'native-image-pr-reports-update' option requires 'native-image-pr-reports' to be set 'true'`
+        `'${INPUT_NI_PR_REPORTS_UPDATE}' option requires '${INPUT_NI_PR_REPORTS}' to be set 'true'`
       )
     }
   }