diff --git a/programs/explorer/startmenu.c b/programs/explorer/startmenu.c
index 0d79aca9a4d..f5f50bb3e72 100644
--- a/programs/explorer/startmenu.c
+++ b/programs/explorer/startmenu.c
@@ -475,7 +475,7 @@ void do_startmenu(HWND hwnd)
     if (SUCCEEDED(SHGetSpecialFolderLocation(NULL, CSIDL_CONTROLS, &pidl)))
         add_shell_item(&root_menu, pidl);
 
-    LoadStringW(NULL, IDS_RUN, run_label, sizeof(run_label)/sizeof(run_label[0]));
+    LoadStringW(NULL, IDS_RUN, run_label, ARRAY_SIZE(run_label));
 
     mii.cbSize = sizeof(mii);
     mii.fMask = MIIM_STRING|MIIM_ID;
diff --git a/programs/start/start.c b/programs/start/start.c
index 4010befa04c..32372ecc341 100644
--- a/programs/start/start.c
+++ b/programs/start/start.c
@@ -100,8 +100,7 @@ static void fatal_string_error(int which, DWORD error_code, const WCHAR *filenam
 {
 	WCHAR msg[2048];
 
-	if (!LoadStringW(GetModuleHandleW(NULL), which,
-					msg, sizeof(msg)/sizeof(WCHAR)))
+	if (!LoadStringW(GetModuleHandleW(NULL), which, msg, ARRAY_SIZE(msg)))
 		WINE_ERR("LoadString failed, error %d\n", GetLastError());
 
 	fatal_error(msg, error_code, filename);
@@ -111,8 +110,7 @@ static void fatal_string(int which)
 {
 	WCHAR msg[2048];
 
-	if (!LoadStringW(GetModuleHandleW(NULL), which,
-					msg, sizeof(msg)/sizeof(WCHAR)))
+	if (!LoadStringW(GetModuleHandleW(NULL), which, msg, ARRAY_SIZE(msg)))
 		WINE_ERR("LoadString failed, error %d\n", GetLastError());
 
 	output(msg);