diff --git a/test_problems/cathermo/HMW_dupl_test/runtest b/test_problems/cathermo/HMW_dupl_test/runtest
index 80b577dee..7459e295b 100755
--- a/test_problems/cathermo/HMW_dupl_test/runtest
+++ b/test_problems/cathermo/HMW_dupl_test/runtest
@@ -16,7 +16,7 @@ fi
 #################################################################
 #
 CANTERA_DATA=${CANTERA_DATA:=../../../data/inputs}; export CANTERA_DATA
-CANTERA_BIN=${CANTERA_BIN:=../../../build/bin/}
+CANTERA_BIN=${CANTERA_BIN:=../../../bin/}
 
 #################################################################