diff --git a/bin/sh/miscbltin.c b/bin/sh/miscbltin.c
--- a/bin/sh/miscbltin.c
+++ b/bin/sh/miscbltin.c
@@ -226,7 +226,9 @@
 			while (*ap != NULL)
 				setvar(*ap++, "", 0);
 			sig = pendingsig;
-			return (128 + (sig != 0 ? sig : SIGALRM));
+			if (sig == 0)
+				continue;
+			return (128 + sig);
 		}
 	}