diff --git a/completion/Makefile b/completion/Makefile
index efd70d03..df055624 100644
--- a/completion/Makefile
+++ b/completion/Makefile
@@ -17,15 +17,15 @@ install: install-bash install-fish install-zsh
 
 install-bash: stgit.bash
 	$(INSTALL) -d -m 755 $(DESTDIR)$(bashdir)
-	$(INSTALL) -T -m 644 stgit.bash $(DESTDIR)$(bashdir)/stg
+	$(INSTALL) -m 644 stgit.bash $(DESTDIR)$(bashdir)/stg
 
 install-fish: stg.fish
 	$(INSTALL) -d -m 755 $(DESTDIR)$(fishdir)
-	$(INSTALL) -T -m 644 stg.fish $(DESTDIR)$(fishdir)/stg.fish
+	$(INSTALL) -m 644 stg.fish $(DESTDIR)$(fishdir)/stg.fish
 
 install-zsh:
 	$(INSTALL) -d -m 755 $(DESTDIR)$(zshdir)
-	$(INSTALL) -T -m 644 stgit.zsh $(DESTDIR)$(zshdir)/_stg
+	$(INSTALL) -m 644 stgit.zsh $(DESTDIR)$(zshdir)/_stg
 
 .PHONY: install install-bash install-fish install-zsh
 
diff --git a/contrib/vim/Makefile b/contrib/vim/Makefile
index 023a2161..0f522766 100644
--- a/contrib/vim/Makefile
+++ b/contrib/vim/Makefile
@@ -8,11 +8,11 @@ install: install-ftdetect install-syntax
 
 install-ftdetect: ftdetect/stg.vim
 	$(INSTALL) -d $(DESTDIR)$(prefix)/share/vim/vimfiles/ftdetect
-	$(INSTALL) -D -m 0644 $< $(DESTDIR)$(prefix)/share/vim/vimfiles/ftdetect
+	$(INSTALL) -m 0644 $< $(DESTDIR)$(prefix)/share/vim/vimfiles/ftdetect
 
 install-syntax: syntax/*.vim
 	$(INSTALL) -d $(DESTDIR)$(prefix)/share/vim/vimfiles/syntax
-	$(INSTALL) -D -m 0644 $? $(DESTDIR)$(prefix)/share/vim/vimfiles/syntax
+	$(INSTALL) -m 0644 $? $(DESTDIR)$(prefix)/share/vim/vimfiles/syntax
 
 clean: