diff --git a/reactos/drivers/storage/ide/uniata/config.h b/reactos/drivers/storage/ide/uniata/config.h
index 687cd46e60d..690acd4b0cd 100644
--- a/reactos/drivers/storage/ide/uniata/config.h
+++ b/reactos/drivers/storage/ide/uniata/config.h
@@ -129,15 +129,11 @@
  #define  DEF_I64(x)     (x##I64)
 
  /* ReactOS-specific defines */
- #ifdef USE_REACTOS_DDK
- #else //USE_REACTOS_DDK
 
   #define DDKAPI          __stdcall
   #define DDKFASTAPI      __fastcall
   #define DDKCDECLAPI     _cdecl
 
- #endif  //DDKAPI
-
  #define DECLSPEC_NAKED   __declspec(naked)
 
 #endif //__GNUC__
diff --git a/reactos/drivers/storage/ide/uniata/id_sata.cpp b/reactos/drivers/storage/ide/uniata/id_sata.cpp
index 0e45b30888d..a48d6e0630b 100644
--- a/reactos/drivers/storage/ide/uniata/id_sata.cpp
+++ b/reactos/drivers/storage/ide/uniata/id_sata.cpp
@@ -243,6 +243,7 @@ UniataSataEvent(
 } // end UniataSataEvent()
 
 ULONG
+NTAPI
 UniataSataReadPort4(
     IN PHW_CHANNEL chan,
     IN ULONG io_port_ndx,
@@ -311,6 +312,7 @@ UniataSataReadPort4(
 } // end UniataSataReadPort4()
 
 VOID
+NTAPI
 UniataSataWritePort4(
     IN PHW_CHANNEL chan,
     IN ULONG io_port_ndx,