diff --git a/go/ssa/builder.go b/go/ssa/builder.go
index 5029f0e0..9390c398 100644
--- a/go/ssa/builder.go
+++ b/go/ssa/builder.go
@@ -2263,10 +2263,6 @@ func (p *Package) build() {
 	if p.info == nil {
 		return // synthetic package, e.g. "testmain"
 	}
-	if p.files == nil {
-		p.info = nil
-		return // package loaded from export data
-	}
 
 	// Ensure we have runtime type info for all exported members.
 	// TODO(adonovan): ideally belongs in memberFromObject, but