diff --git a/Cantera/src/kinetics/Makefile.in b/Cantera/src/kinetics/Makefile.in
index 8475f435d..64e8923eb 100644
--- a/Cantera/src/kinetics/Makefile.in
+++ b/Cantera/src/kinetics/Makefile.in
@@ -76,7 +76,7 @@ all: $(LIB) .depends
 	  $(INSTALL_TSC) "$${lh}" $(INCDIR) ; \
 	done)
 %.d:
-	@CXX_DEPENDS@ $(CXX_INCLUDES) $*.cpp > $*.d
+	@CXX_DEPENDS@ $(CXX_FLAGS) $(CXX_INCLUDES) $*.cpp > $*.d
 
 .cpp.o:
 	@CXX@ -c $< $(CXX_FLAGS) $(CXX_INCLUDES)
@@ -105,7 +105,6 @@ clean:
          fi )
 
 depends:
-	$(RM) *.d .depends
 	@MAKE@ .depends
 
 .depends: $(DEPENDS)