diff --git a/dlls/kernel32/profile.c b/dlls/kernel32/profile.c
index 8209a2a..a33da49 100644
--- a/dlls/kernel32/profile.c
+++ b/dlls/kernel32/profile.c
@@ -1189,6 +1189,7 @@ INT WINAPI GetPrivateProfileStringA( LPCSTR section, LPCSTR entry,
     if (filename) RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
     else filenameW.Buffer = NULL;
 
+    if (bufferW) *bufferW = '\0';
     retW = GetPrivateProfileStringW( sectionW.Buffer, entryW.Buffer,
                                      def_valW.Buffer, bufferW, len,
                                      filenameW.Buffer);
-- 
1.5.4.3