--- a/Makefile
+++ b/Makefile
@@ -259,7 +259,7 @@ links : bindir
 
 install : touch-dummy
 	@if test -d bin ; then mkdir -p $(DESTDIR)$(bindir) ; \
-	for x in `find . -path ./test-suite -prune -o -name *.x -type f` ; do \
+	for x in `find * ! -path "test-suite/*" -name *.x -type f` ; do \
 		cp $$x $(DESTDIR)$(bindir)/ ; done ; \
 	fi
 	@echo 'Quantum ESPRESSO binaries installed in $(PREFIX)/bin'