diff --git a/construct/console.cc b/construct/console.cc
index 6e6436df1..c18bc2b74 100644
--- a/construct/console.cc
+++ b/construct/console.cc
@@ -348,6 +348,9 @@ construct::console::handle_line_bymodule()
 				append(*record_fd, string_view(cmdline));
 			}
 
+			if(empty(str))
+				return;
+
 			append(*record_fd, str);
 		}