diff --git a/src/lib/gen/scthash.c b/src/lib/gen/scthash.c
index 108cb010..08e2caea 100644
--- a/src/lib/gen/scthash.c
+++ b/src/lib/gen/scthash.c
@@ -34,7 +34,7 @@
 #include "gen.h"
 
 int
-scthash(register int x, register int y, int tsize)
+scthash(int x, int y, int tsize)
 {
     if (x < 0)
 	x = -x;