diff --git a/dlls/oleaut32/varformat.c b/dlls/oleaut32/varformat.c
index e21ce96109c..351529c596e 100644
--- a/dlls/oleaut32/varformat.c
+++ b/dlls/oleaut32/varformat.c
@@ -2490,11 +2490,11 @@ HRESULT WINAPI VarFormatCurrency(LPVARIANT pVarIn, INT nDigits, INT nLeading,
 
     if (nGrouping == -2)
     {
-      WCHAR nGrouping[16];
-      nGrouping[2] = '\0';
-      GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SDECIMAL, nGrouping,
-                     sizeof(nGrouping)/sizeof(WCHAR));
-      numfmt.Grouping = nGrouping[2] == '2' ? 32 : nGrouping[0] - '0';
+      WCHAR grouping[16];
+      grouping[2] = '\0';
+      GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SDECIMAL, grouping,
+                     sizeof(grouping)/sizeof(WCHAR));
+      numfmt.Grouping = grouping[2] == '2' ? 32 : grouping[0] - '0';
     }
     else if (nGrouping == -1)
       numfmt.Grouping = 3; /* 3 = "n,nnn.nn" */