diff --git a/test_problems/cathermo/HMW_graph_GvT/Gex_standalone.cpp b/test_problems/cathermo/HMW_graph_GvT/Gex_standalone.cpp
index 04e7e3e9e..8ca978154 100644
--- a/test_problems/cathermo/HMW_graph_GvT/Gex_standalone.cpp
+++ b/test_problems/cathermo/HMW_graph_GvT/Gex_standalone.cpp
@@ -137,7 +137,7 @@ double calc(double temp, double Iionic) {
   return gex;
 }
 
-main() {
+int main() {
 
   printf("standalone test of Gibbs excess free energy:\n");
   printf("T = 50C\n");
@@ -148,4 +148,5 @@ main() {
   printf("T = 200C\n");
   
   res = calc(273.15 + 200., Iionic);
+  return 0;
 }
diff --git a/test_problems/cathermo/issp/runtest b/test_problems/cathermo/issp/runtest
index d979d5642..3b01fb2b8 100755
--- a/test_problems/cathermo/issp/runtest
+++ b/test_problems/cathermo/issp/runtest
@@ -23,9 +23,9 @@ diff -w outputa.txt output_blessed.txt > diff_test.out
 retnStat=$?
 if [ $retnStat = "0" ]
 then
-  echo "successful diff comparison on ISSPTester test"
+  echo "successful diff comparison on issp test"
 else
-  echo "unsuccessful diff comparison on ISSPTester test"
+  echo "unsuccessful diff comparison on issp test"
   echo "FAILED" > csvCode.txt
   temp_success="0"
 fi
diff --git a/test_problems/pureFluidTest/runtest b/test_problems/pureFluidTest/runtest
index 3bf05a4de..57498ba79 100755
--- a/test_problems/pureFluidTest/runtest
+++ b/test_problems/pureFluidTest/runtest
@@ -10,7 +10,7 @@ testName=pureFluidTest_Water
 #################################################################
 CANTERA_DATA=${CANTERA_DATA:=../../../data/inputs}; export CANTERA_DATA
 
-CANTERA_BIN=${CANTERA_BIN:=../../../bin}
+CANTERA_BIN=${CANTERA_BIN:=../../bin}
 ./testPureWater > output.txt
 retnStat=$?
 if [ $retnStat != "0" ]