diff --git a/reactos/hal/halx86/generic/misc.c b/reactos/hal/halx86/generic/misc.c
index ca6af7129f6..2f884f2c885 100644
--- a/reactos/hal/halx86/generic/misc.c
+++ b/reactos/hal/halx86/generic/misc.c
@@ -45,7 +45,7 @@ HalpUnmapVirtualAddress(IN PVOID VirtualAddress,
 
 VOID
 NTAPI
-HalpSetInterruptGate(ULONG Index, PVOID address)
+HalpSetInterruptGate(ULONG index, PVOID address)
 {
   KIDTENTRY *idt;
   KIDT_ACCESS Access;