diff --git a/package/putty/Config.in b/package/putty/Config.in
index fe5b9eb78e..420a7532ef 100644
--- a/package/putty/Config.in
+++ b/package/putty/Config.in
@@ -1,9 +1,14 @@
 config BR2_PACKAGE_PUTTY
 	bool "putty"
 	depends on BR2_USE_MMU # fork()
+	depends on BR2_USE_WCHAR
 	help
 	  PuTTY is a free SSH and Telnet client. Without GTK2 activated,
 	  only the commandline tools plink, pscp, psftp, and puttygen are
 	  built; enable GTK2 for the graphical client.
 
 	  http://www.chiark.greenend.org.uk/~sgtatham/putty/
+
+comment "putty needs a toolchain w/ wchar"
+	depends on BR2_USE_MMU
+	depends on !BR2_USE_WCHAR