diff --git a/pkgs/by-name/li/livepeer/package.nix b/pkgs/by-name/li/livepeer/package.nix
index 8c9451d47023..4f6bce500ea0 100644
--- a/pkgs/by-name/li/livepeer/package.nix
+++ b/pkgs/by-name/li/livepeer/package.nix
@@ -31,7 +31,7 @@ buildGoModule (finalAttrs: {
     gnutls
   ];
 
-  CGO_LDFLAGS = [
+  env.CGO_LDFLAGS = toString [
     "-lm"
   ];