diff --git a/lib/libpam/modules/pam_deny/pam_deny.c b/lib/libpam/modules/pam_deny/pam_deny.c
index 4876b4762ee..02dc8a5910f 100644
--- a/lib/libpam/modules/pam_deny/pam_deny.c
+++ b/lib/libpam/modules/pam_deny/pam_deny.c
@@ -27,7 +27,7 @@
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
-#include <sys/param.h>
+#include <stddef.h>
 
 #define PAM_SM_AUTH
 #define PAM_SM_ACCOUNT
diff --git a/lib/libpam/modules/pam_permit/pam_permit.c b/lib/libpam/modules/pam_permit/pam_permit.c
index b5e40865ccd..632fbcb85ac 100644
--- a/lib/libpam/modules/pam_permit/pam_permit.c
+++ b/lib/libpam/modules/pam_permit/pam_permit.c
@@ -27,7 +27,7 @@
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
-#include <sys/param.h>
+#include <stddef.h>
 
 #define	PAM_SM_AUTH
 #define	PAM_SM_ACCOUNT