diff --git a/tools/nogo/cli/cli.go b/tools/nogo/cli/cli.go
index 5692fc6ec5c..1cb0cebe80b 100644
--- a/tools/nogo/cli/cli.go
+++ b/tools/nogo/cli/cli.go
@@ -514,7 +514,7 @@ func (r *Render) Execute(ctx context.Context, fs *flag.FlagSet, args ...any) sub
 }
 
 // goVersionRe matches a `go VERSION` line in go.mod, capturing VERSION.
-var goVersionRe = regexp.MustCompile(`^go\s+(\S+)`)
+var goVersionRe = regexp.MustCompile(`(?m)^go\s+(\S+)`)
 
 // resolveGOVERSION sets flags.GOVERSION from flags.GOVERSIONModFile, if necessary.
 func resolveGOVERSION() error {
diff --git a/tools/nogo/defs.bzl b/tools/nogo/defs.bzl
index 0be8a408d69..3072168bf2b 100644
--- a/tools/nogo/defs.bzl
+++ b/tools/nogo/defs.bzl
@@ -70,7 +70,7 @@ def _nogo_stdlib_impl(ctx):
     go_ctx, args, inputs, raw_findings = _nogo_config(ctx, deps = [])
 
     # GOVERSION of std is set by the std go.mod.
-    args.append("-GOVERSION-mod-file=%s" % go_ctx.stdlib_mod)
+    args.append("-GOVERSION-mod-file=%s" % go_ctx.stdlib_mod.path)
 
     # Build the analyzer command.
     facts_file = ctx.actions.declare_file(ctx.label.name + ".facts")