diff --git a/packages/frontend-2/lib/common/generated/gql/graphql.ts b/packages/frontend-2/lib/common/generated/gql/graphql.ts
index 66f0cc8aa..03e457bf9 100644
--- a/packages/frontend-2/lib/common/generated/gql/graphql.ts
+++ b/packages/frontend-2/lib/common/generated/gql/graphql.ts
@@ -1955,7 +1955,10 @@ export type PendingStreamCollaborator = {
   id: Scalars['String']['output'];
   inviteId: Scalars['String']['output'];
   invitedBy: LimitedUser;
+  project: Project;
+  /** @deprecated Use project instead */
   projectId: Scalars['String']['output'];
+  /** @deprecated Use project instead */
   projectName: Scalars['String']['output'];
   role: Scalars['String']['output'];
   /** @deprecated Use projectId instead */
@@ -8266,6 +8269,7 @@ export type PendingStreamCollaboratorFieldArgs = {
   id: {},
   inviteId: {},
   invitedBy: {},
+  project: {},
   projectId: {},
   projectName: {},
   role: {},
diff --git a/packages/server/assets/workspacesCore/typedefs/projects.graphql b/packages/server/assets/workspacesCore/typedefs/projects.graphql
index 462d3e9e5..b07e4cced 100644
--- a/packages/server/assets/workspacesCore/typedefs/projects.graphql
+++ b/packages/server/assets/workspacesCore/typedefs/projects.graphql
@@ -16,3 +16,7 @@ extend type ProjectCollaborator {
   """
   workspaceRole: String
 }
+
+extend type PendingStreamCollaborator {
+  workspaceSlug: String
+}
diff --git a/packages/server/modules/core/graph/generated/graphql.ts b/packages/server/modules/core/graph/generated/graphql.ts
index 798695c37..8118364ec 100644
--- a/packages/server/modules/core/graph/generated/graphql.ts
+++ b/packages/server/modules/core/graph/generated/graphql.ts
@@ -1991,6 +1991,7 @@ export type PendingStreamCollaborator = {
   token?: Maybe<Scalars['String']['output']>;
   /** Set only if user is registered */
   user?: Maybe<LimitedUser>;
+  workspaceSlug?: Maybe<Scalars['String']['output']>;
 };
 
 export type PendingWorkspaceCollaborator = {
@@ -6609,6 +6610,7 @@ export type PendingStreamCollaboratorResolvers<ContextType = GraphQLContext, Par
   title?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
   token?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   user?: Resolver<Maybe<ResolversTypes['LimitedUser']>, ParentType, ContextType>;
+  workspaceSlug?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   __isTypeOf?: IsTypeOfResolverFn<ParentType, ContextType>;
 };
 
diff --git a/packages/server/modules/cross-server-sync/graph/generated/graphql.ts b/packages/server/modules/cross-server-sync/graph/generated/graphql.ts
index 489d738fd..ec01ba22f 100644
--- a/packages/server/modules/cross-server-sync/graph/generated/graphql.ts
+++ b/packages/server/modules/cross-server-sync/graph/generated/graphql.ts
@@ -1971,6 +1971,7 @@ export type PendingStreamCollaborator = {
   token?: Maybe<Scalars['String']['output']>;
   /** Set only if user is registered */
   user?: Maybe<LimitedUser>;
+  workspaceSlug?: Maybe<Scalars['String']['output']>;
 };
 
 export type PendingWorkspaceCollaborator = {
diff --git a/packages/server/modules/workspaces/graph/resolvers/projects.ts b/packages/server/modules/workspaces/graph/resolvers/projects.ts
index 0961e6f18..6b8809b82 100644
--- a/packages/server/modules/workspaces/graph/resolvers/projects.ts
+++ b/packages/server/modules/workspaces/graph/resolvers/projects.ts
@@ -1,8 +1,10 @@
 import { db } from '@/db/knex'
+import { StreamNotFoundError } from '@/modules/core/errors/stream'
 import { Resolvers } from '@/modules/core/graph/generated/graphql'
 import { getFeatureFlags } from '@/modules/shared/helpers/envHelper'
 import { getPaginatedItemsFactory } from '@/modules/shared/services/paginatedItems'
 import { WorkspaceTeamMember } from '@/modules/workspaces/domain/types'
+import { WorkspaceNotFoundError } from '@/modules/workspaces/errors/workspace'
 import { intersectProjectCollaboratorsAndWorkspaceCollaboratorsFactory } from '@/modules/workspaces/repositories/projects'
 import {
   countInvitableCollaboratorsByProjectIdFactory,
@@ -68,6 +70,28 @@ export default FF_WORKSPACES_MODULE_ENABLED
         addedToWorkspaceTotalCount: async (parent) => {
           return parent.length
         }
+      },
+      PendingStreamCollaborator: {
+        workspaceSlug: async (parent, _args, ctx) => {
+          const project = await ctx.loaders.streams.getStream.load(parent.streamId)
+          if (!project) {
+            throw new StreamNotFoundError(null, {
+              info: { projectId: parent.streamId }
+            })
+          }
+          if (!project.workspaceId) {
+            return null
+          }
+          const workspace = await ctx.loaders.workspaces?.getWorkspace.load(
+            project.workspaceId
+          )
+          if (!workspace) {
+            throw new WorkspaceNotFoundError(null, {
+              info: { workspaceId: project.workspaceId }
+            })
+          }
+          return workspace.slug
+        }
       }
     } as Resolvers)
   : {}
diff --git a/packages/server/test/graphql/generated/graphql.ts b/packages/server/test/graphql/generated/graphql.ts
index c58c68f04..de376b329 100644
--- a/packages/server/test/graphql/generated/graphql.ts
+++ b/packages/server/test/graphql/generated/graphql.ts
@@ -1972,6 +1972,7 @@ export type PendingStreamCollaborator = {
   token?: Maybe<Scalars['String']['output']>;
   /** Set only if user is registered */
   user?: Maybe<LimitedUser>;
+  workspaceSlug?: Maybe<Scalars['String']['output']>;
 };
 
 export type PendingWorkspaceCollaborator = {