diff --git a/reactos/lib/rtl/rtlp.h b/reactos/lib/rtl/rtlp.h
index 36902564a3c..a721c077273 100644
--- a/reactos/lib/rtl/rtlp.h
+++ b/reactos/lib/rtl/rtlp.h
@@ -28,8 +28,8 @@ extern VOID FASTCALL CHECK_PAGED_CODE_RTL(char *file, int line);
 
 VOID
 NTAPI
-RtlpGetStackLimits(PULONG_PTR StackBase,
-                   PULONG_PTR StackLimit);
+RtlpGetStackLimits(PULONG_PTR LowLimit,
+                   PULONG_PTR HighLimit);
 
 PEXCEPTION_REGISTRATION_RECORD
 NTAPI
diff --git a/reactos/ntoskrnl/io/iomgr/util.c b/reactos/ntoskrnl/io/iomgr/util.c
index 871b3b9f23f..093ae537c1e 100644
--- a/reactos/ntoskrnl/io/iomgr/util.c
+++ b/reactos/ntoskrnl/io/iomgr/util.c
@@ -16,8 +16,8 @@
 
 VOID
 NTAPI
-RtlpGetStackLimits(PULONG_PTR StackBase,
-                   PULONG_PTR StackLimit);
+RtlpGetStackLimits(PULONG_PTR LowLimit,
+                   PULONG_PTR HighLimit);
 
 /* FUNCTIONS *****************************************************************/