diff --git a/compiler/cpp/Makefile.am b/compiler/cpp/Makefile.am
index 3838fac..fa8d1ca 100644
--- a/compiler/cpp/Makefile.am
+++ b/compiler/cpp/Makefile.am
@@ -16,6 +16,10 @@
 # specific language governing permissions and limitations
 # under the License.
 #
+#
+# Contains some contributions under the Thrift Software License.
+# Please see doc/old-thrift-license.txt in the Thrift distribution for
+# details.
 
 AM_YFLAGS = -d
 BUILT_SOURCES =
diff --git a/compiler/cpp/src/generate/t_cpp_generator.cc b/compiler/cpp/src/generate/t_cpp_generator.cc
index c4549f3..6a91550 100644
--- a/compiler/cpp/src/generate/t_cpp_generator.cc
+++ b/compiler/cpp/src/generate/t_cpp_generator.cc
@@ -15,6 +15,10 @@
  * KIND, either express or implied. See the License for the
  * specific language governing permissions and limitations
  * under the License.
+ *
+ * Contains some contributions under the Thrift Software License.
+ * Please see doc/old-thrift-license.txt in the Thrift distribution for
+ * details.
  */
 
 #include <cassert>
diff --git a/compiler/cpp/src/generate/t_csharp_generator.cc b/compiler/cpp/src/generate/t_csharp_generator.cc
index 96c0f6e..7bdbf18 100644
--- a/compiler/cpp/src/generate/t_csharp_generator.cc
+++ b/compiler/cpp/src/generate/t_csharp_generator.cc
@@ -15,6 +15,10 @@
  * KIND, either express or implied. See the License for the
  * specific language governing permissions and limitations
  * under the License.
+ *
+ * Contains some contributions under the Thrift Software License.
+ * Please see doc/old-thrift-license.txt in the Thrift distribution for
+ * details.
  */
 
 #include <string>
diff --git a/compiler/cpp/src/generate/t_rb_generator.cc b/compiler/cpp/src/generate/t_rb_generator.cc
index 5e53bcc..55db0f7 100644
--- a/compiler/cpp/src/generate/t_rb_generator.cc
+++ b/compiler/cpp/src/generate/t_rb_generator.cc
@@ -15,6 +15,10 @@
  * KIND, either express or implied. See the License for the
  * specific language governing permissions and limitations
  * under the License.
+ *
+ * Contains some contributions under the Thrift Software License.
+ * Please see doc/old-thrift-license.txt in the Thrift distribution for
+ * details.
  */
 
 #include <string>
diff --git a/compiler/cpp/src/generate/t_st_generator.cc b/compiler/cpp/src/generate/t_st_generator.cc
index 3600a3b..1d2d323 100644
--- a/compiler/cpp/src/generate/t_st_generator.cc
+++ b/compiler/cpp/src/generate/t_st_generator.cc
@@ -15,6 +15,10 @@
  * KIND, either express or implied. See the License for the
  * specific language governing permissions and limitations
  * under the License.
+ *
+ * Contains some contributions under the Thrift Software License.
+ * Please see doc/old-thrift-license.txt in the Thrift distribution for
+ * details.
  */
 
 #include <string>
diff --git a/compiler/cpp/src/thrifty.yy b/compiler/cpp/src/thrifty.yy
index 00e939c..987dd8d 100644
--- a/compiler/cpp/src/thrifty.yy
+++ b/compiler/cpp/src/thrifty.yy
@@ -1145,4 +1145,4 @@
       $$->val = $3;
     }
 
-%%
\ No newline at end of file
+%%