diff --git a/targets/generic b/targets/generic
index 9d87ba4e..65982ef4 100644
--- a/targets/generic
+++ b/targets/generic
@@ -54,9 +54,10 @@ end
 if envtrue.GLUON_DEBUG then
 	config 'CONFIG_DEBUG=y'
 	config 'CONFIG_NO_STRIP=y'
-	config 'CONFIG_TARGET_ROOTFS_PARTSIZE=500'
 	config '# CONFIG_USE_STRIP is not set'
 	config '# CONFIG_USE_SSTRIP is not set'
+
+	try_config 'CONFIG_TARGET_ROOTFS_PARTSIZE=500'
 end