diff --git a/src/makefile.am b/src/makefile.am
index 2e41059..4a2db9e 100644
--- a/src/makefile.am
+++ b/src/makefile.am
@@ -88,7 +88,7 @@ install-data-local:
 	${mkinstalldirs} ${DESTDIR}${bindir}
 	for file in ${QMAKE_TARGET}{,.app,.exe}; do \
 	  if test -d $$file; then \
-	    ${INSTALL} -d $$file ${DESTDIR}${bindir}; \
+	    rsync -a --delete $$file ${DESTDIR}${bindir}/; \
 	  elif test -e $$file; then \
 	    ${INSTALL} $$file ${DESTDIR}${bindir}; \
 	  fi; \