diff --git a/package/flann/Config.in b/package/flann/Config.in
index 6185b1292d..a3af7c1e01 100644
--- a/package/flann/Config.in
+++ b/package/flann/Config.in
@@ -2,6 +2,8 @@ config BR2_PACKAGE_FLANN
 	bool "flann"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on !BR2_PREFER_STATIC_LIB
+	# triggers an assert in the linker of this toolchain
+	depends on !BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII201305
 	help
 	  FLANN is a library for performing fast approximate nearest
 	  neighbor searches in high dimensional spaces. It contains a