diff --git a/configure b/configure
index 8c0a1029a..42f6e0247 100755
--- a/configure
+++ b/configure
@@ -188,7 +188,7 @@ SHARED=${SHARED:="-shared"}
 F90=${F90:=f90}
 
 # Fortran compiler flags
-FFLAGS=${FFLAGS:='-O2'}
+FFLAGS=${FFLAGS:='-O0 -g'}
 
 # the additional Fortran flags required for linking, if any
 #LFORT_FLAGS =
diff --git a/examples/cxx/equil_example1.cpp b/examples/cxx/equil_example1.cpp
index b47aab96d..50939f0de 100755
--- a/examples/cxx/equil_example1.cpp
+++ b/examples/cxx/equil_example1.cpp
@@ -70,7 +70,7 @@ int equil_example1(int job) {
 
         // create a gas mixture, and set its state
 
-        IdealGasMix gas("silane.cti", "silane");
+        IdealGasMix gas("silane.xml", "silane");
         int nsp = gas.nSpecies();
 
         int ntemps = 50;   // number of temperatures