diff --git a/lib/device/dev-cache.c b/lib/device/dev-cache.c
index 94052dcb2..b16ace403 100644
--- a/lib/device/dev-cache.c
+++ b/lib/device/dev-cache.c
@@ -19,6 +19,9 @@
 #include "config.h"
 #include "toolcontext.h"
 
+#ifdef UDEV_SYNC_SUPPORT
+#include <libudev.h>
+#endif
 #include <unistd.h>
 #include <sys/param.h>
 #include <dirent.h>
diff --git a/lib/misc/lvm-wrappers.c b/lib/misc/lvm-wrappers.c
index 46590b974..7ea3ac50c 100644
--- a/lib/misc/lvm-wrappers.c
+++ b/lib/misc/lvm-wrappers.c
@@ -18,6 +18,8 @@
 #include <fcntl.h>
 
 #ifdef UDEV_SYNC_SUPPORT
+#include <libudev.h>
+
 struct udev *_udev;
 
 int udev_init_library_context(void)
diff --git a/lib/misc/lvm-wrappers.h b/lib/misc/lvm-wrappers.h
index e43f83198..b8d121707 100644
--- a/lib/misc/lvm-wrappers.h
+++ b/lib/misc/lvm-wrappers.h
@@ -17,7 +17,7 @@
 #define _LVM_WRAPPERS_H
 
 #ifdef UDEV_SYNC_SUPPORT
-#include <libudev.h>
+struct udev;
 struct udev *udev_get_library_context(void);
 #endif