diff --git a/src/calibre/linux.py b/src/calibre/linux.py
index 26bbe0837b..51711b5b0f 100644
--- a/src/calibre/linux.py
+++ b/src/calibre/linux.py
@@ -411,7 +411,8 @@ def options(option_parser):
 def opts_and_words(name, op, words):
     opts  = '|'.join(options(op))
     words = '|'.join([w.replace("'", "\\'") for w in words])
-    return ('_'+name+'()'+\
+    fname = name.replace('-', '_')
+    return ('_'+fname+'()'+\
 '''
 {
     local cur opts
@@ -435,7 +436,7 @@ def opts_and_words(name, op, words):
     esac
 
 }
-complete -F _'''%(opts, words) + name + ' ' + name +"\n\n").encode('utf-8')
+complete -F _'''%(opts, words) + fname + ' ' + name +"\n\n").encode('utf-8')
 
 
 def opts_and_exts(name, op, exts):