diff --git a/src/util/virthread.h b/src/util/virthread.h
index b11a2515b21b5f7b16fbea1e3cb46865bc66e989..c2094406c0415e710b52029df09cecfeeb50680f 100644
--- a/src/util/virthread.h
+++ b/src/util/virthread.h
@@ -23,6 +23,7 @@
 # define __THREADS_H_
 
 # include "internal.h"
+# include "virerror.h"
 
 typedef struct virMutex virMutex;
 typedef virMutex *virMutexPtr;