diff --git a/openfpga_flow/regression_test_scripts/tcl_reg_test.sh b/openfpga_flow/regression_test_scripts/tcl_reg_test.sh
index 27aafa8ef..4b4325779 100755
--- a/openfpga_flow/regression_test_scripts/tcl_reg_test.sh
+++ b/openfpga_flow/regression_test_scripts/tcl_reg_test.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-#set -e
+set -e
 ###############################################
 # OpenFPGA Shell in Tcl
 ##############################################