diff --git a/compiler/cpp/Makefile.am b/compiler/cpp/Makefile.am
index ae53d4b..ab703b3 100644
--- a/compiler/cpp/Makefile.am
+++ b/compiler/cpp/Makefile.am
@@ -45,8 +45,7 @@
                  src/generate/t_rb_generator.h \
                  src/generate/t_xsd_generator.h \
                  src/generate/t_perl_generator.h \
-                 src/generate/t_erl_generator.h \
-                 src/generate/t_csharp_generator.h
+                 src/generate/t_erl_generator.h
 
 if THRIFT_GEN_cpp
 thrift_SOURCES += src/generate/t_cpp_generator.cc