diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index a00911dd17281..62dec37421817 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-04-19  Jonathan Wakely  <jwakely@redhat.com>
+
+	PR c++/85464 - missing location for -Wignored-qualifiers diagnostic
+	* g++.dg/diagnostic/pr85464.C: New.
+
 2018-04-19  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/85397
diff --git a/gcc/testsuite/g++.dg/diagnostic/pr85464.C b/gcc/testsuite/g++.dg/diagnostic/pr85464.C
new file mode 100644
index 0000000000000..ee8b65185e5ed
--- /dev/null
+++ b/gcc/testsuite/g++.dg/diagnostic/pr85464.C
@@ -0,0 +1,5 @@
+// { dg-options "-Wignored-qualifiers" }
+struct Test {
+   operator int const(); // { dg-warning "type qualifiers ignored" }
+   operator int const() const; // { dg-warning "type qualifiers ignored" }
+};