diff --git a/lib/rbreadline.rb b/lib/rbreadline.rb
index 2231c81306..b96cee5c79 100644
--- a/lib/rbreadline.rb
+++ b/lib/rbreadline.rb
@@ -1822,10 +1822,7 @@ module RbReadline
 
    def get_term_capabilities(buffer)
       hash = {}
-      buff = IO.popen('infocmp -C 2>/dev/null').read
-	  if(buff and not buff.empty? and buff !~ /couldn't open terminfo/)
-        buff.split(':').select{|x| x =~ /(.*)=(.*)/ and hash[$1]=$2.gsub('\\E',"\e").gsub(/\^(.)/){($1[0].ord ^ ((?a..?z).include?($1[0]) ? 0x60 : 0x40)).chr}}
-      end
+      `infocmp -C`.split(':').select{|x| x =~ /(.*)=(.*)/ and hash[$1]=$2.gsub('\\E',"\e").gsub(/\^(.)/){($1[0].ord ^ ((?a..?z).include?($1[0]) ? 0x60 : 0x40)).chr}}
       @_rl_term_at7          =     hash["@7"]
       @_rl_term_DC           =     hash["DC"]
       @_rl_term_IC           =     hash["IC"]