diff --git a/test/Makefile.am b/test/Makefile.am
index 13222af8..b6c1b572 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -30,6 +30,9 @@ endif
 if ZLIB_REGRESS
 regress_zlib_SOURCES = regress_zlib.c
 endif
+if BUILD_WIN32
+regress_SOURCES += regress_iocp.c
+endif
 regress_LDADD = ../libevent.la $(PTHREAD_LIBS) $(ZLIB_LIBS)
 regress_CFLAGS = -I$(top_srcdir) -I$(top_srcdir)/compat \
 	-I$(top_srcdir)/include  $(PTHREAD_CFLAGS) $(ZLIB_CFLAGS)
diff --git a/test/regress.h b/test/regress.h
index bdea95f6..3f96f403 100644
--- a/test/regress.h
+++ b/test/regress.h
@@ -44,6 +44,7 @@ extern struct testcase_t dns_testcases[];
 extern struct testcase_t rpc_testcases[];
 extern struct testcase_t edgetriggered_testcases[];
 extern struct testcase_t minheap_testcases[];
+extern struct testcase_t iocp_testcases[];
 
 void regress_threads(void *);
 void test_bufferevent_zlib(void *);
diff --git a/test/regress_main.c b/test/regress_main.c
index 7bcda356..1512f768 100644
--- a/test/regress_main.c
+++ b/test/regress_main.c
@@ -268,6 +268,9 @@ struct testgroup_t testgroups[] = {
 	{ "dns/", dns_testcases },
 	{ "rpc/", rpc_testcases },
 	{ "thread/", thread_testcases },
+#ifdef WIN32
+	{ "iocp/", iocp_testcases },
+#endif
         END_OF_GROUPS
 };