diff --git a/src/pl/plpython/Makefile b/src/pl/plpython/Makefile
index 12ce26e..a31328d 100644
*** a/src/pl/plpython/Makefile
--- b/src/pl/plpython/Makefile
*************** endif # can't build
*** 189,195 ****
  # distprep and maintainer-clean rules should be run even if we can't build.
  
  # Force this dependency to be known even without dependency info built:
! plpython_plpy.o: spiexceptions.h
  
  spiexceptions.h: $(top_srcdir)/src/backend/utils/errcodes.txt generate-spiexceptions.pl
  	$(PERL) $(srcdir)/generate-spiexceptions.pl $< > $@
--- 189,195 ----
  # distprep and maintainer-clean rules should be run even if we can't build.
  
  # Force this dependency to be known even without dependency info built:
! plpy_plpymodule.o: spiexceptions.h
  
  spiexceptions.h: $(top_srcdir)/src/backend/utils/errcodes.txt generate-spiexceptions.pl
  	$(PERL) $(srcdir)/generate-spiexceptions.pl $< > $@