diff --git a/Makefile b/Makefile
index 1656d77..db251d2 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 
 BUILD_DIR ?= build
 TARGET ?= forge
-RUN_ARGS ?= -tf --project=project -is=720 --demo
+RUN_ARGS ?= -tf --project=project -is=480 --demo
 VERSION ?= invar-$(shell grep -Eo '[0-9]+\.[0-9]+\.[0-9]+' forge-steel/configure.ac)
 
 # FILES