diff --git a/src/sage/rings/ring_extension_element.pyx b/src/sage/rings/ring_extension_element.pyx
index 67b6aa90879..56632e40942 100644
--- a/src/sage/rings/ring_extension_element.pyx
+++ b/src/sage/rings/ring_extension_element.pyx
@@ -328,7 +328,7 @@ cdef class RingExtensionElement(CommutativeAlgebraElement):
             sage: g.parent()
             Finite Field in z2 of size 5^2
 
-        TESTS::
+        TESTS:
 
         We check the case of a tower of extensions::