diff --git a/reactos/subsys/system/winefile/winefile.c b/reactos/subsys/system/winefile/winefile.c
index 581506a84f3..8fb06e2152d 100644
--- a/reactos/subsys/system/winefile/winefile.c
+++ b/reactos/subsys/system/winefile/winefile.c
@@ -204,7 +204,7 @@ int swprintf(wchar_t* buffer, const wchar_t* fmt, ...)
 static void read_directory(Entry* dir, LPCTSTR path, SORT_ORDER sortOrder, HWND hwnd);
 static void set_curdir(ChildWnd* child, Entry* entry, int idx, HWND hwnd);
 static void refresh_child(ChildWnd* child);
-static void refresh_drives();
+static void refresh_drives(void);
 static void get_path(Entry* dir, PTSTR path);
 static void format_date(const FILETIME* ft, TCHAR* buffer, int visible_cols);
 
@@ -279,7 +279,7 @@ static void display_network_error(HWND hwnd)
 
 
 /* allocate and initialise a directory entry */
-static Entry* alloc_entry()
+static Entry* alloc_entry(void)
 {
 	Entry* entry = (Entry*) malloc(sizeof(Entry));
 
@@ -4053,7 +4053,7 @@ static IContextMenu2* s_pctxmenu2 = NULL;
 static IContextMenu3* s_pctxmenu3 = NULL;
 #endif
 
-static void CtxMenu_reset()
+static void CtxMenu_reset(void)
 {
 	s_pctxmenu2 = NULL;