diff --git a/pkgs/tools/misc/mmake/default.nix b/pkgs/tools/misc/mmake/default.nix
index 2172b8b958c6..b95033bea24b 100644
--- a/pkgs/tools/misc/mmake/default.nix
+++ b/pkgs/tools/misc/mmake/default.nix
@@ -15,7 +15,8 @@ buildGoModule rec {
 
   ldflags = [ "-s" "-w" ];
 
-  checkFlags = [ "-short" ];
+  # Almost all tests require non-local networking, trying to resolve githubusercontent.com.
+  doCheck = false;
 
   meta = with lib; {
     homepage = "https://github.com/tj/mmake";