diff --git a/sys/dev/iscsi/initiator/iscsivar.h b/sys/dev/iscsi/initiator/iscsivar.h
index 0a56f800e84..875d7ad1974 100644
--- a/sys/dev/iscsi/initiator/iscsivar.h
+++ b/sys/dev/iscsi/initiator/iscsivar.h
@@ -64,7 +64,6 @@ typedef uint32_t digest_t(const void *, int len, uint32_t ocrc);
 
 MALLOC_DECLARE(M_ISCSI);
 MALLOC_DECLARE(M_ISCSIBUF);
-MALLOC_DECLARE(M_PDU);
 
 #define ISOK2DIG(dig, pp)	((dig != NULL) && ((pp->ipdu.bhs.opcode & 0x1f) != ISCSI_LOGIN_CMD))
 
diff --git a/sys/fs/nwfs/nwfs_mount.h b/sys/fs/nwfs/nwfs_mount.h
index a1670942eaf..92c11af4ec5 100644
--- a/sys/fs/nwfs/nwfs_mount.h
+++ b/sys/fs/nwfs/nwfs_mount.h
@@ -65,11 +65,4 @@ struct nwfs_args {
 	int		tz;
 };
 
-#ifdef _KERNEL
-
-#ifdef MALLOC_DECLARE
-MALLOC_DECLARE(M_NWFSMNT);
-#endif
-
-#endif
 #endif /* !_NWFS_MOUNT_H_ */
diff --git a/sys/fs/smbfs/smbfs.h b/sys/fs/smbfs/smbfs.h
index 84c79a12f89..486959b0081 100644
--- a/sys/fs/smbfs/smbfs.h
+++ b/sys/fs/smbfs/smbfs.h
@@ -61,10 +61,6 @@ struct smbfs_args {
 
 #include <sys/_sx.h>
 
-#ifdef MALLOC_DECLARE
-MALLOC_DECLARE(M_SMBFSMNT);
-#endif
-
 struct smbnode;
 struct smb_share;
 struct u_cred;
diff --git a/sys/sys/event.h b/sys/sys/event.h
index d92eb55d43d..08072a776ed 100644
--- a/sys/sys/event.h
+++ b/sys/sys/event.h
@@ -147,10 +147,6 @@ struct knlist {
 
 #ifdef _KERNEL
 
-#ifdef MALLOC_DECLARE
-MALLOC_DECLARE(M_KQUEUE);
-#endif
-
 /*
  * Flags for knote call
  */
diff --git a/sys/sys/file.h b/sys/sys/file.h
index 99889bab65e..1489ca06ad7 100644
--- a/sys/sys/file.h
+++ b/sys/sys/file.h
@@ -185,10 +185,6 @@ struct xfile {
 
 #ifdef _KERNEL
 
-#ifdef MALLOC_DECLARE
-MALLOC_DECLARE(M_FILE);
-#endif
-
 extern struct fileops vnops;
 extern struct fileops badfileops;
 extern struct fileops socketops;
diff --git a/sys/ufs/ufs/extattr.h b/sys/ufs/ufs/extattr.h
index 3716ec27309..7dd02353777 100644
--- a/sys/ufs/ufs/extattr.h
+++ b/sys/ufs/ufs/extattr.h
@@ -115,10 +115,6 @@ struct extattr {
 
 #include <sys/_sx.h>
 
-#ifdef MALLOC_DECLARE
-MALLOC_DECLARE(M_EXTATTR);
-#endif
-
 struct vnode;
 LIST_HEAD(ufs_extattr_list_head, ufs_extattr_list_entry);
 struct ufs_extattr_list_entry {