diff --git a/README.md b/README.md
index 87930d3..89ff29f 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ C++ implementation of [Neural Machine Translation of Rare Words with Subword Uni
 
 Compile with:
 ```
-g++ -std=c++11 -pthread -O3 fastBPE/main.cc -IfastBPE -o fast
+g++ -std=c++11 -pthread -O3 fastBPE/fastBPE.cpp -IfastBPE -o fast
 ```
 
 ## Usage:
diff --git a/fastBPE/main.cc b/fastBPE/fastBPE.cpp
similarity index 100%
rename from fastBPE/main.cc
rename to fastBPE/fastBPE.cpp