diff --git a/pymolfile/molfile/molfile_plugins/compile/CMakeLists.txt b/pymolfile/molfile/molfile_plugins/compile/CMakeLists.txt
index 1fd40fa85e0f7495e73483131ad7e3d5def55c7c..c37d1b71348435cd59cc9414b14aaeb14bd2161b 100644
--- a/pymolfile/molfile/molfile_plugins/compile/CMakeLists.txt
+++ b/pymolfile/molfile/molfile_plugins/compile/CMakeLists.txt
@@ -4,7 +4,7 @@ project(molfileplugins)
 
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}")
 find_package(EXPAT)
-#find_package(TCL)
+find_package(TCL)
 include (FindNetCDF.cmake)
 set (NETCDF_CXX "YES")
 #find_package(NetCDF REQUIRED)