diff --git a/test_problems/ChemEquil_gri_matrix/Makefile.in b/test_problems/ChemEquil_gri_matrix/Makefile.in
index 912d76cf7..decf4e6c2 100644
--- a/test_problems/ChemEquil_gri_matrix/Makefile.in
+++ b/test_problems/ChemEquil_gri_matrix/Makefile.in
@@ -68,7 +68,7 @@ endif
 #  -> don't need this: -L$(CANTERA_LIBDIR)  as
 #     @LOCAL_LIB_DIRS@ has this directory
 #
-CANTERA_LIBS = @LOCAL_LIBS@ -lctcxx
+CANTERA_LIBS = -L$(CANTERA_LIBDIR) @LOCAL_LIBS@ -lctcxx
 
 ifeq ($(in_CanteraBuildTree),1)
 CANTERA_LIBS_DEP = @LOCAL_LIBS_DEP@ $(CANTERA_LIBDIR)/libctcxx.a