diff --git a/package/smstools3/Config.in b/package/smstools3/Config.in
index 1086869d89..3e2ea252fc 100644
--- a/package/smstools3/Config.in
+++ b/package/smstools3/Config.in
@@ -23,3 +23,4 @@ endif
 
 comment "smstools3 needs a toolchain w/ wchar, threads"
 	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_USE_MMU