diff --git a/modules/modperl/Makefile.inc b/modules/modperl/Makefile.inc
index dcc0ea84..2e21991f 100644
--- a/modules/modperl/Makefile.inc
+++ b/modules/modperl/Makefile.inc
@@ -49,9 +49,7 @@ modperl/ZNC.o: modperl/ZNC.cpp Makefile
 	$(Q)$(CXX) $(MODFLAGS) -I$(srcdir) -MD -MF .depend/modperl.library.dep $(PERL_CXX) -Wno-unused-variable -Wno-shadow -o $@ $< -c
 
 ifneq "$(SWIG)" ""
-modperl/swigperlrun.h modperl/functions.cpp modperl/ZNC.cpp modperl/ZNC.pm: modperl/codegen.pl modperl/functions.in Makefile
-	@mkdir -p modperl .depend
-	$(Q)$(MAKE) -f $(srcdir)/modperl/Makefile.gen $(C) SWIG="$(SWIG)" srcdir="$(srcdir)" PERL="$(PERL)" VERBOSE="$(VERBOSE)" SED="$(SED)"
+include $(srcdir)/modperl/Makefile.gen
 endif
 
 modperl_install: install_datadir modperl_all