diff --git a/pi4/build/build-stormux.sh b/pi4/build/build-stormux.sh
index ff67ecf..7e980e0 100755
--- a/pi4/build/build-stormux.sh
+++ b/pi4/build/build-stormux.sh
@@ -91,7 +91,7 @@ done
 
 # make sure variables are set, or use defaults.
 export imageVersion="${imageVersion:-64}"
-export imageSize="${imageSize:-4G}"
+export imageSize="${imageSize:-6G}"
 imageName="${imageName:-stormux-pi4-${imageVersion}-$(date '+%Y-%m-%d').img}"
 imageName="${imageName/-64-/-aarch64-}"
 imageName="${imageName/-32-/-armv7h-}"