diff --git a/Cantera/cxx/demos/combustor/runtest b/Cantera/cxx/demos/combustor/runtest
index 6dcd2ef74..6751d43fb 100755
--- a/Cantera/cxx/demos/combustor/runtest
+++ b/Cantera/cxx/demos/combustor/runtest
@@ -29,7 +29,7 @@ fi
 diff -w output_0_blessed.txt output_0.txt > diff_out_0.txt
 retnStat_0=$?
 
-csvdiff -a 1.0E-50 combustor_blessed_0.csv combustor_cxx.csv  > diff_csv.txt
+${CANTERA_BIN}/csvdiff -a 1.0E-50 combustor_blessed_0.csv combustor_cxx.csv  > diff_csv.txt
 retnStat_csv_0=$?
 
 retnTotal=1
diff --git a/Cantera/cxx/demos/flamespeed/runtest b/Cantera/cxx/demos/flamespeed/runtest
index 882367428..324c97d9e 100755
--- a/Cantera/cxx/demos/flamespeed/runtest
+++ b/Cantera/cxx/demos/flamespeed/runtest
@@ -29,7 +29,7 @@ fi
 diff -w output_0_blessed.txt output_0.txt > diff_out_0.txt
 retnStat_0=$?
 
-csvdiff -a 1.0E-50 flamespeed_blessed_0.csv flamespeed.csv  > diff_csv.txt
+${CANTERA_BIN}/csvdiff -a 1.0E-50 flamespeed_blessed_0.csv flamespeed.csv  > diff_csv.txt
 retnStat_csv_0=$?
 
 retnTotal=1
diff --git a/Cantera/cxx/demos/kinetics1/runtest b/Cantera/cxx/demos/kinetics1/runtest
index 1d50867ef..f851f104b 100755
--- a/Cantera/cxx/demos/kinetics1/runtest
+++ b/Cantera/cxx/demos/kinetics1/runtest
@@ -35,7 +35,7 @@ cat output_a.txt | sed /'press any'/d > output.txt
 diff -w output_0_blessed.txt output.txt > diff_out_0.txt
 retnStat_0=$?
 
-csvdiff -a 1.0E-20 kin1_blessed_0.csv kin1.csv  > diff_csv.txt
+${CANTERA_BIN}/csvdiff -a 1.0E-20 kin1_blessed_0.csv kin1.csv  > diff_csv.txt
 retnStat_csv_0=$?
 
 retnTotal=1