diff --git a/src/kpatch_patch.c b/src/kpatch_patch.c
index 3b53a5a514ce4de2dcdc272622b12aff1d630abf..e21d926f7dfae39d2c4ba3a14d6276bacba79237 100644
--- a/src/kpatch_patch.c
+++ b/src/kpatch_patch.c
@@ -56,7 +56,7 @@
 #include "include/kpatch_log.h"
 #include <sys/time.h>
 
-#define GET_MICROSECONDS(a, b) ((a.tv_sec - b.tv_sec) * 1000000 + (a.tv_usec - b.tv_usec))
+#define GET_MICROSECONDS(a, b) ((a.tv_sec - b.tv_sec) * 1000 + (a.tv_usec - b.tv_usec) / 1000)
 
 static inline int
 is_addr_in_info(unsigned long addr,