diff --git a/Makefile.in b/Makefile.in
index 03be9fe99..b0d8be31b 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -151,7 +151,7 @@ install: all
 	# Binary C programs
 	$(INSTALL) -d $(PBINDIR)
 	$(INSTALL) -m 750 $(O_USER) tools/captcha.sh $(PBINDIR)
-	[ -f deps/p1_pam/priv/bin/epam ] \
+	-[ -f deps/p1_pam/priv/bin/epam ] \
 		&& $(INSTALL) -m 750 $(O_USER) deps/p1_pam/priv/bin/epam $(PBINDIR)
 	#
 	# Binary system libraries