diff --git a/include/spdk_internal/mock.h b/include/spdk_internal/mock.h
index 388bed9cb..397ad5f3c 100644
--- a/include/spdk_internal/mock.h
+++ b/include/spdk_internal/mock.h
@@ -116,4 +116,6 @@ DECLARE_WRAPPER(pthread_mutex_init, int,
 DECLARE_WRAPPER(pthread_mutexattr_init, int,
 		(pthread_mutexattr_t *attr));
 
+DECLARE_WRAPPER(writev, ssize_t, (int fd, const struct iovec *iov, int iovcnt));
+
 #endif /* SPDK_INTERNAL_MOCK_H */
diff --git a/lib/ut_mock/mock.c b/lib/ut_mock/mock.c
index 8bee1c4ac..4ecb2b27c 100644
--- a/lib/ut_mock/mock.c
+++ b/lib/ut_mock/mock.c
@@ -41,3 +41,5 @@ DEFINE_WRAPPER(pthread_mutex_init, int,
 
 DEFINE_WRAPPER(pthread_mutexattr_init, int,
 	       (pthread_mutexattr_t *attr), (attr))
+
+DEFINE_WRAPPER(writev, ssize_t, (int fd, const struct iovec *iov, int iovcnt), (fd, iov, iovcnt))
diff --git a/mk/spdk.mock.unittest.mk b/mk/spdk.mock.unittest.mk
index e151596be..ee2a41906 100644
--- a/mk/spdk.mock.unittest.mk
+++ b/mk/spdk.mock.unittest.mk
@@ -33,4 +33,5 @@
 LDFLAGS += \
 	-Wl,--wrap,calloc \
 	-Wl,--wrap,pthread_mutexattr_init \
-	-Wl,--wrap,pthread_mutex_init
+	-Wl,--wrap,pthread_mutex_init \
+	-Wl,--wrap,writev