diff --git a/third_party/tvl/nix/buildGo/external/default.nix b/third_party/tvl/nix/buildGo/external/default.nix
index 59a1109db2..05e8c9d162 100644
--- a/third_party/tvl/nix/buildGo/external/default.nix
+++ b/third_party/tvl/nix/buildGo/external/default.nix
@@ -109,7 +109,7 @@ let
   analysisOutput = runCommand "${name}-structure.json" { } ''
     ${analyser}/bin/analyser -path ${path} -source ${src} -tags "${lib.concatStringsSep " " tags}" ${if cgo then "-cgo" else ""} > $out
   '';
-  analysis = fromJSON (readFile analysisOutput);
+  analysis = fromJSON (builtins.unsafeDiscardStringContext (readFile analysisOutput));
 in
 lib.fix (self: foldl' lib.recursiveUpdate { } (
   map (entry: mkset entry.locator (toPackage self src path depMap entry cgodeps cgocflags cgoldflags)) analysis