diff --git a/completion/available/git_flow.completion.bash b/completion/available/git_flow.completion.bash
index 04f20ccd..7bfc9ef4 100644
--- a/completion/available/git_flow.completion.bash
+++ b/completion/available/git_flow.completion.bash
@@ -172,6 +172,7 @@ __git_flow_list_hotfixes ()
 }
 
 # temporarily wrap __git_find_on_cmdline() for backwards compatibility
-if [ -z "`type -t __git_find_subcommand`" ]; then
+if ! _command_exists __git_find_subcommand
+then
 	alias __git_find_subcommand=__git_find_on_cmdline
 fi