diff --git a/src/util/virutil.h b/src/util/virutil.h
index ee23f0c1f4..49b4bf440f 100644
--- a/src/util/virutil.h
+++ b/src/util/virutil.h
@@ -99,7 +99,7 @@ char *virGetUserDirectory(void);
 char *virGetUserDirectoryByUID(uid_t uid);
 char *virGetUserConfigDirectory(void);
 char *virGetUserCacheDirectory(void);
-char *virGetUserRuntimeDirectory(void);
+char *virGetUserRuntimeDirectory(void) G_GNUC_NO_INLINE;
 char *virGetUserShell(uid_t uid);
 char *virGetUserName(uid_t uid) G_GNUC_NO_INLINE;
 char *virGetGroupName(gid_t gid) G_GNUC_NO_INLINE;
diff --git a/tests/Makefile.am b/tests/Makefile.am
index ada5b8fc57..fc516376b4 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -212,6 +212,7 @@ test_libraries = libshunload.la \
 	libvirnetdaemonmock.la \
 	libvirnetserverclientmock.la \
 	libvircgroupmock.la \
+	libvirhostdevmock.la \
 	libvirpcimock.la \
 	libvirnetdevmock.la \
 	libvirrandommock.la \
@@ -1226,6 +1227,12 @@ libvirfilecachemock_la_SOURCES = \
 libvirfilecachemock_la_LDFLAGS = $(MOCKLIBS_LDFLAGS)
 libvirfilecachemock_la_LIBADD = $(MOCKLIBS_LIBS)
 
+libvirhostdevmock_la_SOURCES = \
+	virhostdevmock.c \
+	$(NULL)
+libvirhostdevmock_la_LDFLAGS = $(MOCKLIBS_LDFLAGS)
+libvirhostdevmock_la_LIBADD = $(MOCKLIBS_LIBS)
+
 if WITH_LINUX
 vircaps2xmltest_SOURCES = \
 	vircaps2xmltest.c testutils.h testutils.c virfilewrapper.h virfilewrapper.c
diff --git a/tests/qemuhotplugtest.c b/tests/qemuhotplugtest.c
index 9a215ab303..cf87de187f 100644
--- a/tests/qemuhotplugtest.c
+++ b/tests/qemuhotplugtest.c
@@ -900,6 +900,7 @@ mymain(void)
 }
 
 VIR_TEST_MAIN_PRELOAD(mymain,
+                      VIR_TEST_MOCK("virhostdev"),
                       VIR_TEST_MOCK("virpci"),
                       VIR_TEST_MOCK("domaincaps"),
                       VIR_TEST_MOCK("virprocess"),
diff --git a/tests/virhostdevmock.c b/tests/virhostdevmock.c
new file mode 100644
index 0000000000..9b0e4dc2b0
--- /dev/null
+++ b/tests/virhostdevmock.c
@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2020 Red Hat, Inc.
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+#include <config.h>
+
+#include "virutil.h"
+
+char *
+virGetUserRuntimeDirectory(void)
+{
+    return g_build_filename(g_getenv("LIBVIRT_FAKE_ROOT_DIR"),
+                            "user-runtime-directory", NULL);
+}
diff --git a/tests/virhostdevtest.c b/tests/virhostdevtest.c
index b6260bd9c1..b0bad683a8 100644
--- a/tests/virhostdevtest.c
+++ b/tests/virhostdevtest.c
@@ -628,7 +628,9 @@ mymain(void)
     return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
 }
 
-VIR_TEST_MAIN_PRELOAD(mymain, VIR_TEST_MOCK("virpci"))
+VIR_TEST_MAIN_PRELOAD(mymain,
+                      VIR_TEST_MOCK("virhostdev"),
+                      VIR_TEST_MOCK("virpci"))
 #else
 int
 main(void)