diff --git a/src/ImageDetector.ts b/src/ImageDetector.ts
index 905881ac..44993903 100644
--- a/src/ImageDetector.ts
+++ b/src/ImageDetector.ts
@@ -5,13 +5,29 @@ export class ImageDetector {
   async getExistingImages(): Promise<string[]> {
     const existingSet = new Set<string>([])
     const ids = (await exec.exec(`docker image ls -q`, [], { silent: true, listeners: { stderr: console.warn }})).stdoutStr.split(`\n`).filter(id => id !== ``)
-    const repotags = (await exec.exec(`docker`, `image ls --format {{.Repository}}:{{.Tag}} --filter dangling=false`.split(' '), { silent: true, listeners: { stderr: console.warn }})).stdoutStr.split(`\n`).filter(id => id !== ``);
+    const repotags = await this.getExistingImageIdentifiers()
     core.debug(JSON.stringify({ log: "getExistingImages", ids, repotags }));
     ([...ids, ...repotags]).forEach(image => existingSet.add(image))
     core.debug(JSON.stringify({ existingSet }))
     return Array.from(existingSet)
   }
 
+  async getExistingImageIdentifiers(): Promise<string[]> {
+    return (
+        await exec.exec(
+          `docker`, `image ls --format {{.Repository}}:{{.Tag}}:{{.ID}} --filter dangling=false`.split(' '),
+          { silent: true, listeners: { stderr: console.warn }}
+        )
+      )
+        .stdoutStr
+        .split(`\n`)
+        .filter(img => img !== ``)
+        .map(img => {
+          const [repository, tag, id] = img.split(':')
+          return (tag == '<none>' ? id : `${repository}:${tag}`)
+        })
+  }
+
   async getImagesShouldSave(alreadRegisteredImages: string[]): Promise<string[]> {
     const resultSet = new Set(await this.getExistingImages())
     alreadRegisteredImages.forEach(image => resultSet.delete(image))