diff --git a/sys/amd64/amd64/trap.c b/sys/amd64/amd64/trap.c
index 29987da31a6a..9c72a693a0a4 100644
--- a/sys/amd64/amd64/trap.c
+++ b/sys/amd64/amd64/trap.c
@@ -103,6 +103,13 @@ dtrace_trap_func_t	dtrace_trap_func;
 
 dtrace_doubletrap_func_t	dtrace_doubletrap_func;
 
+/*
+ * This is a hook which is initialised by the systrace module
+ * when it is loaded. This keeps the DTrace syscall provider
+ * implementation opaque. 
+ */
+systrace_probe_func_t	systrace_probe_func;
+
 /*
  * These hooks are necessary for the pid, usdt and fasttrap providers.
  */
diff --git a/sys/i386/i386/trap.c b/sys/i386/i386/trap.c
index c19846bd6baf..5006f41be1ec 100644
--- a/sys/i386/i386/trap.c
+++ b/sys/i386/i386/trap.c
@@ -112,6 +112,13 @@ dtrace_trap_func_t	dtrace_trap_func;
 
 dtrace_doubletrap_func_t	dtrace_doubletrap_func;
 
+/*
+ * This is a hook which is initialised by the systrace module
+ * when it is loaded. This keeps the DTrace syscall provider
+ * implementation opaque. 
+ */
+systrace_probe_func_t	systrace_probe_func;
+
 /*
  * These hooks are necessary for the pid, usdt and fasttrap providers.
  */
diff --git a/sys/kern/subr_syscall.c b/sys/kern/subr_syscall.c
index f9689a0bf91b..bba44794cefb 100644
--- a/sys/kern/subr_syscall.c
+++ b/sys/kern/subr_syscall.c
@@ -52,15 +52,6 @@ __FBSDID("$FreeBSD$");
 #endif
 #include <security/audit/audit.h>
 
-#ifdef KDTRACE_HOOKS
-/*
- * This is a hook which is initialised by the systrace module
- * when it is loaded. This keeps the DTrace syscall provider
- * implementation opaque.
- */
-systrace_probe_func_t systrace_probe_func;
-#endif
-
 static inline int
 syscallenter(struct thread *td, struct syscall_args *sa)
 {