1 files changed, 1 insertions, 1 deletions
diff --git a/javanano/src/main/java/com/google/protobuf/nano/Extension.java b/javanano/src/main/java/com/google/protobuf/nano/Extension.java
index 40da3059..c29b030f 100644
--- a/javanano/src/main/java/com/google/protobuf/nano/Extension.java
+++ b/javanano/src/main/java/com/google/protobuf/nano/Extension.java
@@ -338,7 +338,7 @@ public class Extension<M extends ExtendableMessageNano<M>, T> {
         @Override
         protected Object readData(CodedInputByteBufferNano input) {
             try {
-              return input.readData(type);
+              return input.readPrimitiveField(type);
             } catch (IOException e) {
                 throw new IllegalArgumentException("Error reading extension field", e);
             }