diff --git a/coderd/workspaces.go b/coderd/workspaces.go
index ff5543f633..62cc5e6f53 100644
--- a/coderd/workspaces.go
+++ b/coderd/workspaces.go
@@ -90,7 +90,7 @@ func (api *API) workspace(rw http.ResponseWriter, r *http.Request) {
 	}
 	if workspace.Deleted && !showDeleted {
 		httpapi.Write(ctx, rw, http.StatusGone, codersdk.Response{
-			Message: fmt.Sprintf("Workspace %q was deleted, you can view this workspace by specifying '?deleted=true' and trying again.", workspace.ID.String()),
+			Message: fmt.Sprintf("Workspace %q was deleted, you can view this workspace by specifying '?include_deleted=true' and trying again.", workspace.ID.String()),
 		})
 		return
 	}
diff --git a/coderd/workspaces_test.go b/coderd/workspaces_test.go
index b03253b76b..4535a3bdfa 100644
--- a/coderd/workspaces_test.go
+++ b/coderd/workspaces_test.go
@@ -91,7 +91,7 @@ func TestWorkspace(t *testing.T) {
 		ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
 		defer cancel()
 
-		// Getting with deleted=true should still work.
+		// Getting with include_deleted=true should still work.
 		_, err := client.DeletedWorkspace(ctx, workspace.ID)
 		require.NoError(t, err)
 
@@ -102,12 +102,12 @@ func TestWorkspace(t *testing.T) {
 		require.NoError(t, err, "delete the workspace")
 		coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, build.ID)
 
-		// Getting with deleted=true should work.
+		// Getting with include_deleted=true should work.
 		workspaceNew, err := client.DeletedWorkspace(ctx, workspace.ID)
 		require.NoError(t, err)
 		require.Equal(t, workspace.ID, workspaceNew.ID)
 
-		// Getting with deleted=false should not work.
+		// Getting with include_deleted=false should not work.
 		_, err = client.Workspace(ctx, workspace.ID)
 		require.Error(t, err)
 		require.ErrorContains(t, err, "410") // gone
@@ -1517,12 +1517,12 @@ func TestWorkspaceByOwnerAndName(t *testing.T) {
 		coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, build.ID)
 
 		// Then:
-		// When we call without includes_deleted, we don't expect to get the workspace back
+		// When we call without include_deleted, we don't expect to get the workspace back
 		_, err = client.WorkspaceByOwnerAndName(ctx, workspace.OwnerName, workspace.Name, codersdk.WorkspaceOptions{})
 		require.ErrorContains(t, err, "404")
 
 		// Then:
-		// When we call with includes_deleted, we should get the workspace back
+		// When we call with include_deleted, we should get the workspace back
 		workspaceNew, err := client.WorkspaceByOwnerAndName(ctx, workspace.OwnerName, workspace.Name, codersdk.WorkspaceOptions{IncludeDeleted: true})
 		require.NoError(t, err)
 		require.Equal(t, workspace.ID, workspaceNew.ID)