diff --git a/README.md b/README.md
index 51ffb9330ddf981480dd69edb67701c10153a375..44b1d8dbf323acba4fbb66145ee4812e7fbfa3c6 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,7 @@ TAPIR depends on protobufs, libevent and openssl, so you will need the following
 - libevent-pthreads
 - libevent-dev
 - libssl-dev
+- protobuf-compiler
 
 ## Contact and Questions
 Please email Irene at iyzhang@cs.washington.edu, Dan at drkp@cs.washington.edu and Naveen at naveenks@cs.washington.edu