diff --git a/devicemodel/samples/apl-mrb/launch_uos.sh b/devicemodel/samples/apl-mrb/launch_uos.sh
index c1d16a234..85d7b46ac 100755
--- a/devicemodel/samples/apl-mrb/launch_uos.sh
+++ b/devicemodel/samples/apl-mrb/launch_uos.sh
@@ -5,8 +5,8 @@ kernel_version=$(uname -r | awk -F. '{ printf("%d.%d", $1,$2) }')
 
 ipu_passthrough=0
 
-# this is the temporal solution before IPU is ready on 4.19
-if [ "$kernel_version" = "4.19" ]; then
+# Check the device file of /dev/vbs_ipu to determine the IPU mode
+if [ ! -f "/dev/vbs_ipu" ]; then
 ipu_passthrough=1
 fi