diff --git a/src/Makefile.am b/src/Makefile.am
index f2795a95f970d7aa2191343e7318d2c008f63513..96ee419f41d5a9e928950c9a9979f51e0d6bfa62 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -45,7 +45,7 @@ SUFFIXES = .v .vo .vd
 install-data-local:
 	@$(NORMAL_INSTALL)
 	@test -z "$(datadir)" || \
-	for p in Core Calc Prop; do \
+	for p in Core Calc Prop Appli; do \
 	  $(MKDIR_P) "$(DESTDIR)$(datadir)/$$p"; \
 	done
 	@list='$(FILES:=o)'; test -n "$(datadir)" || list=; \