diff --git a/usr.sbin/pmcannotate/pmcannotate.c b/usr.sbin/pmcannotate/pmcannotate.c
index 0a9d0d7a0d4e..374290fde22e 100644
--- a/usr.sbin/pmcannotate/pmcannotate.c
+++ b/usr.sbin/pmcannotate/pmcannotate.c
@@ -118,8 +118,6 @@ isasminline(const char *str)
 	void *ptr;
 	int nbytes;
 
-	if (isxdigit(str[1]) == 0)
-		return (0);
 	if (sscanf(str, " %p%n", &ptr, &nbytes) != 1)
 		return (0);
 	if (str[nbytes] != ':' || isspace(str[nbytes + 1]) == 0)