diff --git a/bamboo/env.sh b/bamboo/env.sh
index 4ad5fd998..b370d24c9 100644
--- a/bamboo/env.sh
+++ b/bamboo/env.sh
@@ -1,4 +1,7 @@
 #!/bin/bash
 
-# ctest_parallel="no"
+# Disable parallel builds in bamboo due to occasional failure
+# GCC Parallel error: file not recognized: File truncated
+#  https://seiscode.iris.washington.edu/issues/587
 
+make_parallel="no"