diff --git a/bsd/kinfo_getargv.c b/bsd/kinfo_getargv.c
index 6ace737..5afe648 100644
--- a/bsd/kinfo_getargv.c
+++ b/bsd/kinfo_getargv.c
@@ -7,12 +7,21 @@
 #include <sys/proc.h>
 #endif
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "extern.h"
 
 static char *kinfo_getpathname(pid_t);
+static char *xbasename(const char *s);
+
+static char *
+xbasename(const char *s) {
+	char *t = strrchr(s, '/');
+	printf("xxx\n");
+	return ++t;
+}
 
 static char *
 kinfo_getpathname(pid_t pid)
@@ -92,8 +101,11 @@ kinfo_getargv(pid_t pid)
 	if (buf[0] != '/') {
 		argv[0] = kinfo_getpathname(pid);
 		if (argv[0] != NULL) {
-			off += strlen(buf) + 1;
-			i++;
+			if (!strcmp(xbasename(buf), xbasename(argv[0]))) {
+				off += strlen(buf) + 1;
+				i++;
+			} else
+				free(argv[0]);
 		}
 	}
 #endif