diff --git a/package/sofia-sip/Config.in b/package/sofia-sip/Config.in
index 9e42ff7383..24e2148ab9 100644
--- a/package/sofia-sip/Config.in
+++ b/package/sofia-sip/Config.in
@@ -1,5 +1,6 @@
 config BR2_PACKAGE_SOFIA_SIP
 	bool "sofia-sip"
+	depends on BR2_TOOLCHAIN_HAS_THREADS
 	help
 	  Sofia-SIP is an open-source SIP User-Agent library,
 	  compliant with the IETF RFC3261 specification (see the
@@ -8,3 +9,6 @@ config BR2_PACKAGE_SOFIA_SIP
 	  real-time and person-to-person communication services.
 
 	  http://sofia-sip.sourceforge.net/
+
+comment "sofia-sip needs a toolchain w/ threads"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS