diff --git a/tests/sys/fs/fusefs/fallocate.cc b/tests/sys/fs/fusefs/fallocate.cc
index 92e327be5ad..ff5e3eb4f4b 100644
--- a/tests/sys/fs/fusefs/fallocate.cc
+++ b/tests/sys/fs/fusefs/fallocate.cc
@@ -302,6 +302,7 @@ TEST_F(Fspacectl, erofs)
 	build_iovec(&iov, &iovlen, "fspath", (void*)statbuf.f_mntonname, -1);
 	build_iovec(&iov, &iovlen, "from", __DECONST(void *, "/dev/fuse"), -1);
 	ASSERT_EQ(0, nmount(iov, iovlen, newflags)) << strerror(errno);
+	free_iovec(&iov, &iovlen);
 
 	EXPECT_EQ(-1, fspacectl(fd, SPACECTL_DEALLOC, &rqsr, 0, NULL));
 	EXPECT_EQ(EROFS, errno);
@@ -633,6 +634,7 @@ TEST_F(PosixFallocate, erofs)
 	build_iovec(&iov, &iovlen, "fspath", (void*)statbuf.f_mntonname, -1);
 	build_iovec(&iov, &iovlen, "from", __DECONST(void *, "/dev/fuse"), -1);
 	ASSERT_EQ(0, nmount(iov, iovlen, newflags)) << strerror(errno);
+	free_iovec(&iov, &iovlen);
 
 	EXPECT_EQ(EROFS, posix_fallocate(fd, offset, length));
 
diff --git a/tests/sys/fs/fusefs/mockfs.cc b/tests/sys/fs/fusefs/mockfs.cc
index 92fc0c0d97a..bd7bd1b663f 100644
--- a/tests/sys/fs/fusefs/mockfs.cc
+++ b/tests/sys/fs/fusefs/mockfs.cc
@@ -521,6 +521,7 @@ MockFS::MockFS(int max_readahead, bool allow_other, bool default_permissions,
 	if (nmount(iov, iovlen, 0))
 		throw(std::system_error(errno, std::system_category(),
 			"Couldn't mount filesystem"));
+	free_iovec(&iov, &iovlen);
 
 	// Setup default handler
 	ON_CALL(*this, process(_, _))