diff --git a/src/openalpr/CMakeLists.txt b/src/openalpr/CMakeLists.txt
index 2b5f3ea..c983253 100644
--- a/src/openalpr/CMakeLists.txt
+++ b/src/openalpr/CMakeLists.txt
@@ -23,7 +23,6 @@ set(lpr_source_files
  verticalhistogram.cpp
  trex.c
  cjson.c
- tinythread/tinythread.cpp
 )