diff --git a/ugly/repo/pch.mk b/ugly/repo/pch.mk
index 409d41f9..440dfc93 100644
--- a/ugly/repo/pch.mk
+++ b/ugly/repo/pch.mk
@@ -6,11 +6,9 @@ EXTRA_DIST += $(PCH_HEADER)
 
 ugly_base_compile_c = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 ugly_base_compile_cxx = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
-ugly_base_compile_objc = $(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)
 
 COMPILE = $(ugly_base_compile_c)
 CXXCOMPILE = $(ugly_base_compile_cxx)
-OBJCCOMPILE = $(ugly_base_compile_objc)
 
 if MOO_ENABLE_PCH
 
@@ -18,9 +16,13 @@ BUILT_SOURCES += $(ugly_pch_files)
 CLEANFILES += $(ugly_pch_files)
 
 ugly_pch_name = precompiled-header-name
-ugly_pch_files = $(ugly_pch_name)-c.gch $(ugly_pch_name)-c++.gch
+ugly_pch_files = $(ugly_pch_name)-c.gch
 ugly_pch_mk = $(top_srcdir)/ugly/pch.mk
 
+if MOO_USE_CPP
+ugly_pch_files += $(ugly_pch_name)-c++.gch
+endif
+
 $(ugly_pch_name)-c.gch: $(PCH_HEADER) $(ugly_pch_mk)
 	$(ugly_base_compile_c) -x c-header -c $< -o $@
 $(ugly_pch_name)-c++.gch: $(PCH_HEADER) $(ugly_pch_mk)