diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index 43132a0e5f..b126cc988c 100644
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -625,7 +625,7 @@ endif
 
 config KERNEL_NAMESPACES
 	bool "Enable kernel namespaces"
-	default y
+	default y if !SMALL_FLASH
 
 if KERNEL_NAMESPACES