diff --git a/packages/angular/cli/src/commands/add/cli.ts b/packages/angular/cli/src/commands/add/cli.ts
index a41c9b54c7f3..b84de70db580 100644
--- a/packages/angular/cli/src/commands/add/cli.ts
+++ b/packages/angular/cli/src/commands/add/cli.ts
@@ -489,12 +489,9 @@ export default class AddCommandModule
 
     let manifest;
     try {
-      manifest = await this.context.packageManager.getManifest(
-        context.packageIdentifier.toString(),
-        {
-          registry,
-        },
-      );
+      manifest = await this.context.packageManager.getManifest(context.packageIdentifier, {
+        registry,
+      });
     } catch (e) {
       assertIsError(e);
       throw new CommandError(
@@ -508,6 +505,17 @@ export default class AddCommandModule
       );
     }
 
+    // Avoid fully resolving the package version from the registry again in later steps
+    if (context.packageIdentifier.registry) {
+      assert(context.packageIdentifier.name, 'Registry package identifier must have a name');
+      context.packageIdentifier = npa.resolve(
+        context.packageIdentifier.name,
+        // `save-prefix` option is ignored by some package managers so the caret is needed to ensure
+        // that the value in the project package.json is correct.
+        '^' + manifest.version,
+      );
+    }
+
     context.hasSchematics = !!manifest.schematics;
     context.savePackage = manifest['ng-add']?.save;
     context.collectionName = manifest.name;