diff --git a/sys/sys/elf_common.h b/sys/sys/elf_common.h
index 79323049fb71..1e1154f38966 100644
--- a/sys/sys/elf_common.h
+++ b/sys/sys/elf_common.h
@@ -471,6 +471,7 @@ typedef struct {
 #define	DF_1_BIND_NOW	0x00000001	/* Same as DF_BIND_NOW */
 #define	DF_1_GLOBAL	0x00000002	/* Set the RTLD_GLOBAL for object */
 #define	DF_1_NODELETE	0x00000008	/* Set the RTLD_NODELETE for object */
+#define	DF_1_LOADFLTR	0x00000010	/* Immediate loading of filtees */
 #define	DF_1_NOOPEN     0x00000040	/* Do not allow loading on dlopen() */
 #define	DF_1_ORIGIN	0x00000080	/* Process $ORIGIN */