diff --git a/app/controllers/risks_controller.rb b/app/controllers/risks_controller.rb
index 35a45d0..7a43ab3 100644
--- a/app/controllers/risks_controller.rb
+++ b/app/controllers/risks_controller.rb
@@ -129,7 +129,7 @@ def destroy
     flash[:notice] = l(:notice_risk_successful_delete)
 
     respond_to do |format|
-      format.html { redirect_back_or_default project_risks_path(@project) }
+      format.html { redirect_back_or_default(@project ? project_risks_path(@project) : nil) }
       format.api  { render_api_ok }
     end
   end
@@ -196,7 +196,7 @@ def bulk_update
       flash[:notice] = l(:notice_risk_successful_update) unless risks_saved.empty?
     end
 
-    redirect_back_or_default project_risks_path(@project)
+    redirect_back_or_default(@project ? project_risks_path(@project) : nil)
   end
 
   private