diff --git a/ppsthread.c b/ppsthread.c
index 5fae444..d09957b 100644
--- a/ppsthread.c
+++ b/ppsthread.c
@@ -72,7 +72,7 @@
 // 'close' is not defined otherwise.
 #include <unistd.h>
 #include <sys/time.h>
-#include <sys/timepps.h>
+#include "sys/timepps.h"
 #endif
 
 #include "timespec.h"