diff --git a/test_problems/ChemEquil_ionizedGas/Makefile.in b/test_problems/ChemEquil_ionizedGas/Makefile.in
index d54a6e340..8ae6b465a 100644
--- a/test_problems/ChemEquil_ionizedGas/Makefile.in
+++ b/test_problems/ChemEquil_ionizedGas/Makefile.in
@@ -40,11 +40,14 @@ extension2 = @EXEEXT@
 # the C++ compiler
 CXX = @CXX@
 
+#
+# LOCAL_DEFS=-DDEBUG_CHEMEQUIL
+#
 # C++ compile flags
 ifeq ($(src_dir_tree), 1)
-CXX_FLAGS = -DSRCDIRTREE @CXXFLAGS@
+  CXX_FLAGS = -DSRCDIRTREE @CXXFLAGS@ $(LOCAL_DEFS)
 else
-CXX_FLAGS = @CXXFLAGS@
+  CXX_FLAGS = @CXXFLAGS@ $(LOCAL_DEFS)
 endif
 
 # Ending C++ linking libraries
diff --git a/test_problems/ChemEquil_ionizedGas/ionizedGasEquil.cpp b/test_problems/ChemEquil_ionizedGas/ionizedGasEquil.cpp
index 796d2947a..7f0a43ab2 100644
--- a/test_problems/ChemEquil_ionizedGas/ionizedGasEquil.cpp
+++ b/test_problems/ChemEquil_ionizedGas/ionizedGasEquil.cpp
@@ -21,7 +21,7 @@
 using namespace std;
 using namespace Cantera;
 int main(int argc, char **argv) {
-#ifdef DEBUG_HKM
+#ifdef DEBUG_CHEMEQUIL
   ChemEquil_print_lvl = 0;
 #endif
   try {
diff --git a/test_problems/ChemEquil_red1/Makefile.in b/test_problems/ChemEquil_red1/Makefile.in
index d33b70460..5afbf98c5 100644
--- a/test_problems/ChemEquil_red1/Makefile.in
+++ b/test_problems/ChemEquil_red1/Makefile.in
@@ -36,6 +36,9 @@ FORT_LIBS = @FLIBS@
 # the C++ compiler
 CXX = @CXX@
 
+# LOCAL_DEFS = -DDEBUG_CHEMEQUIL
+# LOCAL_DEFS = -DEBUG_BASISOPTIMIZE
+#
 # C++ compile flags
 ifeq ($(src_dir_tree), 1)
 CXX_FLAGS = -DSRCDIRTREE @CXXFLAGS@
diff --git a/test_problems/ChemEquil_red1/basopt_red1.cpp b/test_problems/ChemEquil_red1/basopt_red1.cpp
index d5ce952ad..0d76875b4 100644
--- a/test_problems/ChemEquil_red1/basopt_red1.cpp
+++ b/test_problems/ChemEquil_red1/basopt_red1.cpp
@@ -23,8 +23,10 @@ int main(int argc, char **argv) {
   try {
     IdealGasMix g("red1.xml", "gri30_mix");
 
-#ifdef DEBUG_HKM
+#ifdef DEBUG_BASISOPTIMIZE
    Cantera::BasisOptimize_print_lvl = 0;
+#endif
+#ifdef DEBUG_CHEMEQUIL
    Cantera::ChemEquil_print_lvl = 0;
 #endif