diff --git a/srcpkgs/gns3-server/template b/srcpkgs/gns3-server/template
index 560917ca043..c1c81d9143a 100644
--- a/srcpkgs/gns3-server/template
+++ b/srcpkgs/gns3-server/template
@@ -14,6 +14,8 @@ homepage="https://gns3.com"
 distfiles="https://github.com/GNS3/gns3-server/archive/v${version}.tar.gz"
 checksum=aba345436f3d7302ca6b1f39faf12e0124eaae25fb97d25783da44b516232200
 
+broken="You need aiohttp 1.3 for running GNS3"
+
 pre_build() {
 	sed -i '/typing/d' requirements.txt
 	sed -i 's/yarl>=0.9.8,<0.10/yarl>=0.9.8/' requirements.txt