--- prozilla-2.0.4.old/libprozilla/src/prozilla.h
+++ prozilla-2.0.4/libprozilla/src/prozilla.h
@@ -103,7 +103,7 @@
 /* The extension for the log file created. */
 #define DEFAULT_LOG_EXT ".log"
 
-#define DEFAULT_USER_AGENT "Prozilla"
+#define DEFAULT_USER_AGENT "Mozilla/5.0 (X11; Linux; en-US)"
 
   typedef char longstring[1024];