diff --git a/src/interfaces/libpq/Makefile b/src/interfaces/libpq/Makefile
index 6c9f6920918..230e825c471 100644
--- a/src/interfaces/libpq/Makefile
+++ b/src/interfaces/libpq/Makefile
@@ -111,9 +111,15 @@ install: all installdirs install-lib
 	$(INSTALL_DATA) $(srcdir)/libpq-int.h '$(DESTDIR)$(includedir_internal)'
 	$(INSTALL_DATA) $(srcdir)/pqexpbuffer.h '$(DESTDIR)$(includedir_internal)'
 	$(INSTALL_DATA) $(srcdir)/pg_service.conf.sample '$(DESTDIR)$(datadir)/pg_service.conf.sample'
+ifneq (,$findstring($(PORTNAME), win32 cygwin))
+	$(INSTALL_DATA) $(shlib) '$(DESTDIR)$(bindir)/$(shlib)'
+endif
 
 installdirs: installdirs-lib
 	$(mkinstalldirs) '$(DESTDIR)$(includedir)' '$(DESTDIR)$(includedir_internal)'
+ifneq (,$findstring($(PORTNAME), win32 cygwin))
+	$(MKDIR_P) '$(DESTDIR)$(bindir)'
+endif
 
 uninstall: uninstall-lib
 	rm -f '$(DESTDIR)$(includedir)/libpq-fe.h'
@@ -121,6 +127,9 @@ uninstall: uninstall-lib
 	rm -f '$(DESTDIR)$(includedir_internal)/libpq-int.h'
 	rm -f '$(DESTDIR)$(includedir_internal)/pqexpbuffer.h'
 	rm -f '$(DESTDIR)$(datadir)/pg_service.conf.sample'
+ifneq (,$findstring($(PORTNAME), win32 cygwin))
+	rm -f '$(DESTDIR)$(bindir)/$(shlib)'
+endif
 
 clean distclean: clean-lib
 	rm -f $(OBJS) pg_config_paths.h crypt.c getaddrinfo.c inet_aton.c noblock.c open.c pgstrcasecmp.c snprintf.c strerror.c strlcpy.c thread.c md5.c ip.c encnames.c wchar.c win32error.c pgsleep.c pthread.h libpq.rc