Index: /trunk/src/VBox/Additions/solaris/SharedFolders/vboxfs_prov.c
===================================================================
--- /trunk/src/VBox/Additions/solaris/SharedFolders/vboxfs_prov.c	(revision 30432)
+++ /trunk/src/VBox/Additions/solaris/SharedFolders/vboxfs_prov.c	(revision 30433)
@@ -524,5 +524,5 @@
 sfprov_timespec_from_ftime(RTTIMESPEC *ts, timestruc_t time)
 {
-	uint64_t nanosec = 1000000000 * time.tv_sec + time.tv_nsec;
+	uint64_t nanosec = UINT64_C(1000000000) * time.tv_sec + time.tv_nsec;
 	RTTimeSpecSetNano(ts, nanosec);
 }