diff --git a/debian/config/sparc/config b/debian/config/sparc/config
index 31684715b..100dfda0c 100644
--- a/debian/config/sparc/config
+++ b/debian/config/sparc/config
@@ -268,7 +268,9 @@ CONFIG_SUN_PARTITION=y
 ## file: mm/Kconfig
 ##
 ## choice: Memory model
+# CONFIG_FLATMEM_MANUAL is not set
 # CONFIG_DISCONTIGMEM_MANUAL is not set
+CONFIG_SPARSEMEM_MANUAL=y
 ## end choice
 
 ##