diff --git a/webif/lib/ts.class b/webif/lib/ts.class
index e3a5908..1e25dfd 100644
--- a/webif/lib/ts.class
+++ b/webif/lib/ts.class
@@ -862,6 +862,7 @@ ts method getkey {mode} {
 					lappend keys $key
 				}
 			}
+		} on error {} {
 		} finally {
 			catch {$fd close}
 		}
@@ -881,6 +882,7 @@ ts method getkey {mode} {
 					lappend keys $key
 				}
 			}
+		} on error {} {
 		} finally {
 			catch {$fd close}
 		}