diff --git a/src/OpenMesh/Core/CMakeLists.txt b/src/OpenMesh/Core/CMakeLists.txt
index f4be1e8d..dc6a3323 100644
--- a/src/OpenMesh/Core/CMakeLists.txt
+++ b/src/OpenMesh/Core/CMakeLists.txt
@@ -24,6 +24,10 @@ set (directories
 acg_append_files (headers "*.hh" ${directories})
 acg_append_files (sources "*.cc" ${directories})
 
+IF(WIN32)
+  acg_append_files (sources "*.c" ${directories})
+ENDIF(WIN32)
+
 if (WIN32)
   # OpenMesh has no dll exports so we have to build a static library on windows
   acg_add_library (OpenMeshCore STATIC ${sources} ${headers})