diff --git a/mk/rustllvm.mk b/mk/rustllvm.mk
index b4e9ac97d10..efe32395cea 100644
--- a/mk/rustllvm.mk
+++ b/mk/rustllvm.mk
@@ -2,7 +2,7 @@
 # rustc LLVM-extensions (C++) library variables and rules
 ######################################################################
 
-RUSTLLVM_LIB_CS := $(addprefix rustllvm/, Passes2.cpp)
+RUSTLLVM_LIB_CS := $(addprefix rustllvm/, Passes.cpp)
 
 RUSTLLVM_OBJS_CS := $(addprefix rustllvm/, RustWrapper.cpp)
 
diff --git a/src/rustllvm/Passes2.cpp b/src/rustllvm/Passes.cpp
similarity index 100%
rename from src/rustllvm/Passes2.cpp
rename to src/rustllvm/Passes.cpp