diff --git a/package/dialog/Config.in b/package/dialog/Config.in
index b3efd8d85b..c7cd8a46e3 100644
--- a/package/dialog/Config.in
+++ b/package/dialog/Config.in
@@ -10,3 +10,7 @@ config BR2_PACKAGE_DIALOG
 	  This application provides a method of displaying several different
 	  types of dialog boxes from shell scripts.  This allows a developer
 	  of a script to interact with the user in a much friendlier manner.
+
+comment "dialog needs a toolchain w/ threads"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_USE_MMU