diff --git a/compiler/cpp/Makefile.am b/compiler/cpp/Makefile.am
index c2084a4..4766aa2 100644
--- a/compiler/cpp/Makefile.am
+++ b/compiler/cpp/Makefile.am
@@ -7,6 +7,7 @@
 thrift_SOURCES = src/thrifty.yy \
                  src/thriftl.ll \
                  src/main.cc \
+                 src/md5c.c \
                  src/generate/t_generator.cc \
                  src/generate/t_cpp_generator.cc \
                  src/generate/t_java_generator.cc \