diff --git a/man/man3/sha1.3 b/man/man3/sha1.3
index 13ae14843..62b717c19 100644
--- a/man/man3/sha1.3
+++ b/man/man3/sha1.3
@@ -31,7 +31,7 @@
 .Nd calculate the NIST Secure Hash Algorithm
 .Sh SYNOPSIS
 .Fd #include <sys/types.h>
-.Fd #include <sha1.h>
+.Fd #include <minix/sha1.h>
 .Ft void
 .Fn SHA1Init "SHA1_CTX *context"
 .Ft void