diff --git a/layers/meta-balena-raspberrypi/recipes-core/images/balena-image-initramfs.bbappend b/layers/meta-balena-raspberrypi/recipes-core/images/balena-image-initramfs.bbappend
index c6edb4b37..804fc468b 100644
--- a/layers/meta-balena-raspberrypi/recipes-core/images/balena-image-initramfs.bbappend
+++ b/layers/meta-balena-raspberrypi/recipes-core/images/balena-image-initramfs.bbappend
@@ -5,3 +5,4 @@ IMAGE_ROOTFS_MAXSIZE:raspberrypicm4-ioboard-sb = "51200"
 
 # increase initramfs maxsize to 40 MiB
 IMAGE_ROOTFS_MAXSIZE:raspberrypi5 = "40960"
+IMAGE_ROOTFS_MAXSIZE:raspberrypi4-64 = "40960"