diff --git a/GNUmakefile b/GNUmakefile
index 89cfcbce1..e4bc5f435 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -410,38 +410,25 @@ ifeq ($(MANPAGES),y)
 build-uudoc:
 	${CARGO} build ${CARGOFLAGS} --bin uudoc --features "uudoc ${EXES}" ${PROFILE_CMD} --no-default-features
 
-manpages: build-coreutils build-uudoc
-	mkdir -p $(BUILDDIR)/man/
-	$(foreach prog, $(INSTALLEES) $(HASHSUM_PROGS), \
-		$(BUILDDIR)/uudoc manpage $(prog) > $(BUILDDIR)/man/$(PROG_PREFIX)$(prog).1 $(newline) \
-	)
-
-install-manpages: manpages
+install-manpages: build-uudoc
 	mkdir -p $(DESTDIR)$(DATAROOTDIR)/man/man1
 	$(foreach prog, $(INSTALLEES) $(HASHSUM_PROGS), \
-		$(INSTALL) -m 644 $(BUILDDIR)/man/$(PROG_PREFIX)$(prog).1 $(DESTDIR)$(DATAROOTDIR)/man/man1/ $(newline) \
+		$(BUILDDIR)/uudoc manpage $(prog) > $(DESTDIR)$(DATAROOTDIR)/man/man1/$(PROG_PREFIX)$(prog).1 $(newline) \
 	)
 else
 install-manpages:
 endif
 
 ifeq ($(COMPLETIONS),y)
-completions: build-coreutils build-uudoc
-	mkdir -p $(BUILDDIR)/completions/zsh $(BUILDDIR)/completions/bash $(BUILDDIR)/completions/fish
-	$(foreach prog, $(INSTALLEES) $(HASHSUM_PROGS) , \
-		$(BUILDDIR)/uudoc completion $(prog) zsh > $(BUILDDIR)/completions/zsh/_$(PROG_PREFIX)$(prog) $(newline) \
-		$(BUILDDIR)/uudoc completion $(prog) bash > $(BUILDDIR)/completions/bash/$(PROG_PREFIX)$(prog) $(newline) \
-		$(BUILDDIR)/uudoc completion $(prog) fish > $(BUILDDIR)/completions/fish/$(PROG_PREFIX)$(prog).fish $(newline) \
-	)
 
-install-completions: completions
+install-completions: build-uudoc
 	mkdir -p $(DESTDIR)$(DATAROOTDIR)/zsh/site-functions
 	mkdir -p $(DESTDIR)$(DATAROOTDIR)/bash-completion/completions
 	mkdir -p $(DESTDIR)$(DATAROOTDIR)/fish/vendor_completions.d
 	$(foreach prog, $(INSTALLEES) $(HASHSUM_PROGS) , \
-		$(INSTALL) -m 644 $(BUILDDIR)/completions/zsh/_$(PROG_PREFIX)$(prog) $(DESTDIR)$(DATAROOTDIR)/zsh/site-functions/ $(newline) \
-		$(INSTALL) -m 644 $(BUILDDIR)/completions/bash/$(PROG_PREFIX)$(prog) $(DESTDIR)$(DATAROOTDIR)/bash-completion/completions/ $(newline) \
-		$(INSTALL) -m 644 $(BUILDDIR)/completions/fish/$(PROG_PREFIX)$(prog).fish $(DESTDIR)$(DATAROOTDIR)/fish/vendor_completions.d/ $(newline) \
+		$(BUILDDIR)/uudoc completion $(prog) zsh > $(DESTDIR)$(DATAROOTDIR)/zsh/site-functions/_$(PROG_PREFIX)$(prog) $(newline) \
+		$(BUILDDIR)/uudoc completion $(prog) bash > $(DESTDIR)$(DATAROOTDIR)/bash-completion/completions/$(PROG_PREFIX)$(prog) $(newline) \
+		$(BUILDDIR)/uudoc completion $(prog) fish > $(DESTDIR)$(DATAROOTDIR)/fish/vendor_completions.d/$(PROG_PREFIX)$(prog).fish $(newline) \
 	)
 else
 install-completions: