Use full import paths for test protos.
diff --git a/proto/text_test.go b/proto/text_test.go
index 707bedd..03e9a98 100644
--- a/proto/text_test.go
+++ b/proto/text_test.go
@@ -41,8 +41,8 @@
 
 	"github.com/golang/protobuf/proto"
 
-	proto3pb "./proto3_proto"
-	pb "./testdata"
+	proto3pb "github.com/golang/protobuf/proto/proto3_proto"
+	pb "github.com/golang/protobuf/proto/testdata"
 )
 
 // textMessage implements the methods that allow it to marshal and unmarshal