diff --git a/.changeset/dirty-cases-scream.md b/.changeset/dirty-cases-scream.md
new file mode 100644
index 0000000000..77275415ac
--- /dev/null
+++ b/.changeset/dirty-cases-scream.md
@@ -0,0 +1,6 @@
+---
+"@pnpm/resolve-dependencies": patch
+"pnpm": patch
+---
+
+Don't fail on `pnpm add`, when `blockExoticSubdeps` is set to `true` [#10324](https://github.com/pnpm/pnpm/issues/10324).
diff --git a/__fixtures__/with-git-protocol-dep/cache/metadata-v1.3/localhost+7769/is-number.v8 b/__fixtures__/with-git-protocol-dep/cache/metadata-v1.3/localhost+7769/is-number.v8
new file mode 100644
index 0000000000..2ff795d4d7
Binary files /dev/null and b/__fixtures__/with-git-protocol-dep/cache/metadata-v1.3/localhost+7769/is-number.v8 differ
diff --git a/pkg-manager/resolve-dependencies/src/resolveDependencies.ts b/pkg-manager/resolve-dependencies/src/resolveDependencies.ts
index 01fc07e2a3..6fc299aac4 100644
--- a/pkg-manager/resolve-dependencies/src/resolveDependencies.ts
+++ b/pkg-manager/resolve-dependencies/src/resolveDependencies.ts
@@ -1390,7 +1390,8 @@ async function resolveDependency (
   if (
     ctx.blockExoticSubdeps &&
     options.currentDepth > 0 &&
-    !isNonExoticDep(pkgResponse.body.resolvedVia)
+    pkgResponse.body.resolvedVia != null && // This is already coming from the lockfile, we skip the check in this case for now. Should be fixed later.
+    isExoticDep(pkgResponse.body.resolvedVia)
   ) {
     const error = new PnpmError(
       'EXOTIC_SUBDEP',
@@ -1807,6 +1808,6 @@ const NON_EXOTIC_RESOLVED_VIA = new Set([
   'workspace',
 ])
 
-function isNonExoticDep (resolvedVia: string | undefined): boolean {
-  return resolvedVia != null && NON_EXOTIC_RESOLVED_VIA.has(resolvedVia)
+function isExoticDep (resolvedVia: string): boolean {
+  return !NON_EXOTIC_RESOLVED_VIA.has(resolvedVia)
 }