diff --git a/Cantera/src/converters/Makefile.in b/Cantera/src/converters/Makefile.in
index a21524b8f..a274230f8 100644
--- a/Cantera/src/converters/Makefile.in
+++ b/Cantera/src/converters/Makefile.in
@@ -17,7 +17,7 @@ CXX_FLAGS = @CXXFLAGS@ $(CXX_OPT)
 
 # Temporarily removed 'filter.o', since it was causing a compile error on Mac OS X.
 OBJS = atomicWeightDB.o CKParser.o CKReader.o Reaction.o ckr_utils.o \
-        thermoFunctions.o writelog.o ck2ct.o 
+        thermoFunctions.o writelog.o ck2ct.o ck2ctml.o
 
 CXX_INCLUDES = -I. -I..
 CONV_LIB = @buildlib@/libconverters.a