--- lib/net/tnsping.rb.ori	2012-07-03 14:49:48.880121570 +1100
+++ lib/net/tnsping.rb	2012-07-03 14:50:28.964230939 +1100
@@ -191,7 +191,7 @@
       re_comment    = /^#/
       re_tns_sentry = /^#{db}.*?=/i                # specific entry
       re_tns_gentry = /^\w.*?=/                    # generic entry
-      re_tns_pair   = /\w+\s*\=\s*[\w\.]+/         # used to parse key=val
+      re_tns_pair   = /\w+\s*\=\s*[\w\.-]+/         # used to parse key=val
       re_keys       = /\bhost\b|\bport\b|\bsid\b/i
 
       data_string = ""