diff --git a/docs/gl_objects/projects.rst b/docs/gl_objects/projects.rst
index fdee21597..7092fe66f 100644
--- a/docs/gl_objects/projects.rst
+++ b/docs/gl_objects/projects.rst
@@ -292,7 +292,7 @@ Delete a custom attribute for a project::
 
 Search projects by custom attribute::
 
-    project.customattributes.set('type': 'internal')
+    project.customattributes.set('type', 'internal')
     gl.projects.list(custom_attributes={'type': 'internal'})
 
 Project files