diff --git a/CMakeLists.txt b/CMakeLists.txt
index 27ed0ac73c6ae3d2ef6efa5f7a21dc56a83a79fe..87cd3cbb6d5140f08ca7dcbb27e1844f92176ad6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -594,7 +594,7 @@ set(ZIG_STAGE2_SOURCES
     "${CMAKE_SOURCE_DIR}/src/type.zig"
     "${CMAKE_SOURCE_DIR}/src/value.zig"
     "${CMAKE_SOURCE_DIR}/src/windows_sdk.zig"
-    "${CMAKE_SOURCE_DIR}/src/zir.zig"
+    "${CMAKE_SOURCE_DIR}/src/Zir.zig"
     "${CMAKE_SOURCE_DIR}/src/Sema.zig"
 )