diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index adce7ea4f1e6..7f442854815d 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-08-04  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/66392
+	* g++.dg/init/explicit4.C: New.
+
 2015-08-04  Bill Schmidt  <wschmidt@vnet.linux.ibm.com>
 
 	* gcc.target/powerpc/vec-cmp-sel.c: Avoid test failure on machines
diff --git a/gcc/testsuite/g++.dg/init/explicit4.C b/gcc/testsuite/g++.dg/init/explicit4.C
new file mode 100644
index 000000000000..4a73de525456
--- /dev/null
+++ b/gcc/testsuite/g++.dg/init/explicit4.C
@@ -0,0 +1,12 @@
+// PR c++/66392
+
+struct B { };
+
+struct A {
+  explicit A (A const&);
+  A (B const&);
+};
+
+int main () {
+  A x = B ();
+}