diff --git a/grpc/src/compiler/java_generator.h b/grpc/src/compiler/java_generator.h
index 44c2d86a6..b101fbf56 100644
--- a/grpc/src/compiler/java_generator.h
+++ b/grpc/src/compiler/java_generator.h
@@ -65,8 +65,6 @@ class LogHelper {
 // Abort the program after logging the mesage.
 #define GRPC_CODEGEN_FAIL GRPC_CODEGEN_CHECK(false)
 
-using namespace std;
-
 namespace grpc_java_generator {
 struct Parameters {
   //        //Defines the custom parameter types for methods