diff --git a/libraries/newlib/newlib/libc/include/kolibrios/syscall.h b/libraries/newlib/newlib/libc/include/kolibrios/syscall.h
index 329ad8e15a..f81a4612d4 100644
--- a/libraries/newlib/newlib/libc/include/kolibrios/syscall.h
+++ b/libraries/newlib/newlib/libc/include/kolibrios/syscall.h
@@ -6,7 +6,7 @@
  *
  * Copyright (C) 2025-2026 KolibriOS team
  * Author: Maxim Logaev <maxlogaev@proton.me>
-*/
+ */
 
 #ifndef _KOLIBRIOS_SYSCALL_H_
 #define _KOLIBRIOS_SYSCALL_H_
@@ -351,7 +351,7 @@ extern "C"
 
 #ifndef __ASSEMBLER__
 
-static inline unsigned long
+static inline long
 _ksys0 (unsigned long eax)
 {
   unsigned long ret;
@@ -359,7 +359,7 @@ _ksys0 (unsigned long eax)
   return ret;
 }
 
-static inline unsigned long
+static inline long
 _ksys1 (unsigned long eax, unsigned long ebx)
 {
   unsigned long ret;
@@ -370,7 +370,7 @@ _ksys1 (unsigned long eax, unsigned long ebx)
   return ret;
 }
 
-static inline unsigned long
+static inline long
 _ksys2 (unsigned long eax, unsigned long ebx, unsigned long ecx)
 {
   unsigned long ret;
@@ -381,7 +381,7 @@ _ksys2 (unsigned long eax, unsigned long ebx, unsigned long ecx)
   return ret;
 }
 
-static inline unsigned long
+static inline long
 _ksys3 (unsigned long eax, unsigned long ebx, unsigned long ecx,
         unsigned long edx)
 {
@@ -393,27 +393,27 @@ _ksys3 (unsigned long eax, unsigned long ebx, unsigned long ecx,
   return ret;
 }
 
-static inline unsigned long
+static inline long
 _ksys4 (unsigned long eax, unsigned long ebx, unsigned long ecx,
-        unsigned long edx, unsigned long edi)
+        unsigned long edx, unsigned long esi)
 {
   unsigned long ret;
   __asm__ __volatile__ ("int $0x40"
                         : "=a"(ret)
-                        : "a"(eax), "b"(ebx), "c"(ecx), "d"(edx), "D"(edi)
+                        : "a"(eax), "b"(ebx), "c"(ecx), "d"(edx), "S"(esi)
                         : "memory");
   return ret;
 }
 
-static inline unsigned long
+static inline long
 _ksys5 (unsigned long eax, unsigned long ebx, unsigned long ecx,
-        unsigned long edx, unsigned long edi, unsigned long esi)
+        unsigned long edx, unsigned long esi, unsigned long edi)
 {
   unsigned long ret;
   __asm__ __volatile__ ("int $0x40"
                         : "=a"(ret)
-                        : "a"(eax), "b"(ebx), "c"(ecx), "d"(edx), "D"(edi),
-                          "S"(esi)
+                        : "a"(eax), "b"(ebx), "c"(ecx), "d"(edx), "S"(esi),
+                          "D"(edi)
                         : "memory");
   return ret;
 }