diff --git a/package/alljoyn/Config.in b/package/alljoyn/Config.in
index 021a07b756..6eb417daf8 100644
--- a/package/alljoyn/Config.in
+++ b/package/alljoyn/Config.in
@@ -3,6 +3,7 @@ config BR2_PACKAGE_ALLJOYN
 	depends on BR2_USE_MMU # fork()
 	depends on !BR2_STATIC_LIBS
 	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	depends on BR2_USE_WCHAR
 	select BR2_PACKAGE_LIBCAP
@@ -19,5 +20,6 @@ config BR2_PACKAGE_ALLJOYN
 
 comment "alljoyn needs a toolchain w/ C++, threads, wchar and dynamic library"
 	depends on BR2_USE_MMU
+	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS || \
 		!BR2_USE_WCHAR || BR2_STATIC_LIBS