diff --git a/googletest/samples/sample4.h b/googletest/samples/sample4.h
index cd60f0d..e256f40 100644
--- a/googletest/samples/sample4.h
+++ b/googletest/samples/sample4.h
@@ -28,9 +28,6 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 // A sample program demonstrating using Google C++ testing framework.
-//
-// Author: wan@google.com (Zhanyong Wan)
-
 #ifndef GTEST_SAMPLES_SAMPLE4_H_
 #define GTEST_SAMPLES_SAMPLE4_H_
 
@@ -46,6 +43,9 @@
   // Returns the current counter value, and increments it.
   int Increment();
 
+  // Returns the current counter value, and decrements it.
+  int Decrement();
+
   // Prints the current counter value to STDOUT.
   void Print() const;
 };