@@ -48,11 +48,11 @@
 				set args [list 1 {*}$args]
 			}
 
 			set callcmd ::tcc4tcl::_$cmd
 
-			if {![info command $callcmd]} {
+			if {[info command $callcmd] == ""} {
 				return -code error "unknown or ambiguous subcommand \"$cmd\": must be cproc, linktclcommand, code, tk, or go"
 			}
 
 			uplevel 1 [list $callcmd $handle {*}$args]
 		}]