diff --git a/flake.nix b/flake.nix
index 53de8faf0..a79a6f4e3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -228,6 +228,7 @@
           };
 
           nix-eval-jobs = final.callPackage ./subprojects/nix-eval-jobs {
+            stdenv = currentStdenv;
             srcDir = ./subprojects/nix-eval-jobs;
           };
 
diff --git a/subprojects/nix-eval-jobs/default.nix b/subprojects/nix-eval-jobs/default.nix
index e4f7c4da2..afb3afa88 100644
--- a/subprojects/nix-eval-jobs/default.nix
+++ b/subprojects/nix-eval-jobs/default.nix
@@ -14,6 +14,9 @@
   boost,
 }:
 
+# gcc ICEs on coroutines at least until 14.3, possibly longer
+assert stdenv.cc.isClang;
+
 let
   sourceBase = if srcDir == null then ./. else srcDir;
   package = stdenv.mkDerivation (finalAttrs: {