diff --git a/include/syscalls.i b/include/syscalls.i
index 01060cd..160777c 100644
--- a/include/syscalls.i
+++ b/include/syscalls.i
@@ -19,4 +19,6 @@ __STD_SYSCALLS_I equ 1
 ; Returns the range start in a0
 ; Permission flags in d2
   xref syscall_vmem_map_free_to
+; Sets the permission flags of the range of virtual pages starting at address a0 with length d1 to d0
+  xref syscall_vmem_set_flags
   endif
diff --git a/syscalls.68k b/syscalls.68k
index 9ebb13d..a9c5525 100644
--- a/syscalls.68k
+++ b/syscalls.68k
@@ -67,4 +67,14 @@ syscall_vmem_map_free_to:
   trap #0
   move.l (a7)+, d3
   rts
-  
+
+  public syscall_vmem_set_flags
+; Sets the permission flags of the range of virtual pages starting at address a0 with length d1 to d0
+syscall_vmem_set_flags:
+  move.l d2, -(a7)
+  move.l d1, d2
+  move.l d0, d1
+  move.l #7, d0
+  trap #0
+  move.l (a7)+, d2
+  rts