diff --git a/src/google/protobuf/stubs/common.cc b/src/google/protobuf/stubs/common.cc
index da73c566..302be7ae 100644
--- a/src/google/protobuf/stubs/common.cc
+++ b/src/google/protobuf/stubs/common.cc
@@ -145,6 +145,8 @@ DECLARE_STREAM_OPERATOR(const char*  , )
 DECLARE_STREAM_OPERATOR(char         , SimpleCtoa)
 DECLARE_STREAM_OPERATOR(int          , SimpleItoa)
 DECLARE_STREAM_OPERATOR(uint         , SimpleItoa)
+DECLARE_STREAM_OPERATOR(long         , SimpleItoa)
+DECLARE_STREAM_OPERATOR(unsigned long, SimpleItoa)
 DECLARE_STREAM_OPERATOR(double       , SimpleDtoa)
 #undef DECLARE_STREAM_OPERATOR
 
diff --git a/src/google/protobuf/stubs/common.h b/src/google/protobuf/stubs/common.h
index 3367d4ce..96be91b7 100644
--- a/src/google/protobuf/stubs/common.h
+++ b/src/google/protobuf/stubs/common.h
@@ -586,6 +586,8 @@ class LIBPROTOBUF_EXPORT LogMessage {
   LogMessage& operator<<(char value);
   LogMessage& operator<<(int value);
   LogMessage& operator<<(uint value);
+  LogMessage& operator<<(long value);
+  LogMessage& operator<<(unsigned long value);
   LogMessage& operator<<(double value);
 
  private: