diff --git a/reactos/media/doc/README.WINE b/reactos/media/doc/README.WINE
index f4eb2ed9546..63dac4c5798 100644
--- a/reactos/media/doc/README.WINE
+++ b/reactos/media/doc/README.WINE
@@ -21,7 +21,7 @@ When porting a new DLL from Wine to ReactOS, please do the following steps
 
 The following build tools are shared with Wine.
 
-reactos/tools/unicode             # Synced to Wine-1.3.29
+reactos/tools/unicode             # Synced to Wine-1.3.37
 reactos/tools/widl                # Synced to Wine-1.3.26
 reactos/tools/winebuild           # Synced to Wine-1_1_13
 reactos/tools/wmc                 # Synced to Wine-20081105 (~Wine-1.1.7)
diff --git a/reactos/tools/unicode/string.c b/reactos/tools/unicode/string.c
index 8f85c632062..0b42ea8a8cc 100644
--- a/reactos/tools/unicode/string.c
+++ b/reactos/tools/unicode/string.c
@@ -351,7 +351,7 @@ int vsnprintfW(WCHAR *str, size_t len, const WCHAR *format, va_list valist)
 {
     unsigned int written = 0;
     const WCHAR *iter = format;
-    char bufa[256], fmtbufa[64], *fmta;
+    char bufa[512], fmtbufa[64], *fmta;
 
     while (*iter)
     {