--- a/final/util/fstring.h
+++ b/final/util/fstring.h
@@ -227,9 +227,15 @@
     FString& setNumber (lDouble, int = getPrecision<lDouble>());
 
     template <typename NumT>
+#ifndef __ANDROID__
     FString& setFormatedNumber (NumT, char = nl_langinfo(THOUSEP)[0]);
     FString& setFormatedNumber (sInt64, char = nl_langinfo(THOUSEP)[0]);
     FString& setFormatedNumber (uInt64, char = nl_langinfo(THOUSEP)[0]);
+#else
+    FString& setFormatedNumber (NumT, char = '\0');
+    FString& setFormatedNumber (sInt64, char = '\0');
+    FString& setFormatedNumber (uInt64, char = '\0');
+#endif
 
     const FString& insert (const FString&, int);
     const FString& insert (const FString&, std::size_t);