diff --git a/resources/phonemetadata.proto b/resources/phonemetadata.proto
index 0cf1faee1..ddb931f69 100644
--- a/resources/phonemetadata.proto
+++ b/resources/phonemetadata.proto
@@ -21,7 +21,6 @@
 syntax = "proto2";
 
 option java_package = "com.google.i18n.phonenumbers";
-option optimize_for = LITE_RUNTIME;
 package i18n.phonenumbers;
 
 message NumberFormat {
diff --git a/resources/phonenumber.proto b/resources/phonenumber.proto
index 8a5e7ab26..2799956c6 100644
--- a/resources/phonenumber.proto
+++ b/resources/phonenumber.proto
@@ -20,7 +20,6 @@
 syntax = "proto2";
 
 option java_package = "com.google.i18n.phonenumbers";
-option optimize_for = LITE_RUNTIME;
 package i18n.phonenumbers;
 
 message PhoneNumber {