diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 1bc34b96395..b0d25939528 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-07-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/51488
+	* g++.dg/template/pr51488.C: New.
+
 2016-07-29  Jakub Jelinek  <jakub@redhat.com>
 
 	PR c/71969
diff --git a/gcc/testsuite/g++.dg/template/pr51488.C b/gcc/testsuite/g++.dg/template/pr51488.C
new file mode 100644
index 00000000000..4979a22787c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/template/pr51488.C
@@ -0,0 +1,7 @@
+// PR c++/51488
+
+template<class T,class U=void> struct s;
+template<class T> struct s<T,typename s<T>::a> {};
+s<int> ca;  // { dg-error "depth" }
+
+// { dg-prune-output "compilation terminated" }