diff --git a/README.md b/README.md
index 06e8b0b7..9439f51b 100644
--- a/README.md
+++ b/README.md
@@ -208,6 +208,7 @@ Here are the Go packages that can be imported correctly:
 * [unicode/utf16](https://pkg.go.dev/unicode/utf16)
 * [math/bits](https://pkg.go.dev/math/bits)
 * [math](https://pkg.go.dev/math)
+* [sync/atomic](https://pkg.go.dev/sync/atomic) (partially)
 
 
 ## How to install
diff --git a/cl/compile.go b/cl/compile.go
index d3dfe4ab..4b1e15b3 100644
--- a/cl/compile.go
+++ b/cl/compile.go
@@ -1019,6 +1019,8 @@ func NewPackageEx(prog llssa.Program, patches Patches, pkg *ssa.Package, files [
 	alt, hasPatch := patches[pkgPath]
 	if hasPatch {
 		pkgTypes = typepatch.Pkg(pkgTypes, alt.Pkg)
+		pkg.Pkg = pkgTypes
+		alt.Pkg = pkgTypes
 	}
 	if packages.DebugPackagesLoad {
 		log.Println("==> NewPackageEx", pkgPath, hasPatch)