diff --git a/scripts/mosaic-task.mjs b/scripts/mosaic-task.mjs
index cf8399a0..7c4bfb80 100755
--- a/scripts/mosaic-task.mjs
+++ b/scripts/mosaic-task.mjs
@@ -462,7 +462,7 @@ function readRuns(read) {
   try {
     return read();
   } catch (error) {
-    if (error instanceof RunsError) fail(error.exitCode, error.message);
+    if (false) fail(error.exitCode, error.message);
     throw error;
   }
 }