diff --git a/kernel/ps4_libkernel.pas b/kernel/ps4_libkernel.pas
index f178caa6..4db1b9da 100644
--- a/kernel/ps4_libkernel.pas
+++ b/kernel/ps4_libkernel.pas
@@ -1356,6 +1356,7 @@ begin
  lib^.set_proc($149AD3E4BB940405,@ps4_pthread_exit);
 
  lib^.set_proc($959CC5792C4F974F,@ps4_pthread_setcancelstate);
+ lib^.set_proc($D9D121BEF8E5AB7D,@ps4_pthread_setcanceltype);
 
  lib^.set_proc($128B51F1ADC049FE,@ps4_pthread_self);
  lib^.set_proc($688F8E782CFCC6B4,@ps4_scePthreadSelf);
diff --git a/kernel/ps4_pthread.pas b/kernel/ps4_pthread.pas
index 7a2d895c..e5294493 100644
--- a/kernel/ps4_pthread.pas
+++ b/kernel/ps4_pthread.pas
@@ -31,6 +31,7 @@ procedure ps4_scePthreadExit(value_ptr:Pointer); SysV_ABI_CDecl;
 procedure ps4_pthread_exit(value_ptr:Pointer); SysV_ABI_CDecl;
 
 function  ps4_pthread_setcancelstate(state:Integer;oldstate:PInteger):Integer; SysV_ABI_CDecl;
+function  ps4_pthread_setcanceltype (_type:Integer;oldtype:PInteger):Integer; SysV_ABI_CDecl;
 
 function  ps4_pthread_self():pthread; SysV_ABI_CDecl;
 function  ps4_scePthreadSelf():pthread; SysV_ABI_CDecl;
@@ -469,14 +470,23 @@ end;
 function ps4_pthread_setcancelstate(state:Integer;oldstate:PInteger):Integer; SysV_ABI_CDecl;
 begin
  Result:=0;
-
  Case state of
   PTHREAD_CANCEL_DISABLE:{Writeln('PTHREAD_CANCEL_DISABLE')};
   PTHREAD_CANCEL_ENABLE :{Writeln('PTHREAD_CANCEL_ENABLE')};
   else
    Exit(EINVAL);
  end;
+end;
 
+function ps4_pthread_setcanceltype(_type:Integer;oldtype:PInteger):Integer; SysV_ABI_CDecl;
+begin
+ Result:=0;
+ Case _type of
+  PTHREAD_CANCEL_DEFERRED    :;
+  PTHREAD_CANCEL_ASYNCHRONOUS:;
+  else
+   Exit(EINVAL);
+ end;
 end;
 
 function ps4_pthread_self():pthread; SysV_ABI_CDecl;