diff --git a/mach/minix/libsys/cleanup.c b/mach/minix/libsys/cleanup.c
new file mode 100644
index 00000000..07d507e3
--- /dev/null
+++ b/mach/minix/libsys/cleanup.c
@@ -0,0 +1,3 @@
+_cleanup()
+{
+}
diff --git a/mach/minix/libsys/exit.c b/mach/minix/libsys/exit.c
index bcf436be..4b1face9 100644
--- a/mach/minix/libsys/exit.c
+++ b/mach/minix/libsys/exit.c
@@ -1,10 +1,8 @@
 #include "lib.h"
 
-PUBLIC int (*__cleanup)();
-
 PUBLIC int exit(status)
 int status;
 {
-  if (__cleanup) (*__cleanup)();
+  _cleanup();
   return callm1(MM, EXIT, status, 0, 0, NIL_PTR, NIL_PTR, NIL_PTR);
 }
diff --git a/mach/minixST/libsys/LIST b/mach/minixST/libsys/LIST
index 31379ee3..95cbe89d 100644
--- a/mach/minixST/libsys/LIST
+++ b/mach/minixST/libsys/LIST
@@ -15,6 +15,7 @@ dup.c
 dup2.c
 exec.c
 exit.c
+cleanup.c
 fork.c
 fstat.c
 getegid.c
diff --git a/mach/minixST/libsys/cleanup.c b/mach/minixST/libsys/cleanup.c
new file mode 100644
index 00000000..07d507e3
--- /dev/null
+++ b/mach/minixST/libsys/cleanup.c
@@ -0,0 +1,3 @@
+_cleanup()
+{
+}
diff --git a/mach/minixST/libsys/exit.c b/mach/minixST/libsys/exit.c
index bcf436be..4b1face9 100644
--- a/mach/minixST/libsys/exit.c
+++ b/mach/minixST/libsys/exit.c
@@ -1,10 +1,8 @@
 #include "lib.h"
 
-PUBLIC int (*__cleanup)();
-
 PUBLIC int exit(status)
 int status;
 {
-  if (__cleanup) (*__cleanup)();
+  _cleanup();
   return callm1(MM, EXIT, status, 0, 0, NIL_PTR, NIL_PTR, NIL_PTR);
 }