diff --git a/util.h b/util.h
index a643205..c478579 100644
--- a/util.h
+++ b/util.h
@@ -14,6 +14,8 @@ void eprintf(const char *, ...);
 long estrtol(const char *, int);
 void putword(const char *);
 void recurse(const char *, void (*)(const char *));
+#undef strlcat
 size_t strlcat(char *, const char *, size_t);
+#undef strlcpy
 size_t strlcpy(char *, const char *, size_t);
 char *ttytostr(int, int);
diff --git a/util/strlcat.c b/util/strlcat.c
index 71749e7..37379e7 100644
--- a/util/strlcat.c
+++ b/util/strlcat.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <string.h>
+#include "../util.h"
 
 size_t
 strlcat(char *dest, const char *src, size_t count)
diff --git a/util/strlcpy.c b/util/strlcpy.c
index f1b6e9e..4804d20 100644
--- a/util/strlcpy.c
+++ b/util/strlcpy.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <string.h>
+#include "../util.h"
 
 size_t
 strlcpy(char *dest, const char *src, size_t size)