diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7152ca841..8cd43729f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -117,12 +117,12 @@ if (WITH_RAWZOR)
     endif (WIN32)
 endif (WITH_RAWZOR)
 
-#if (OPTION_OMP)
-#	find_package(OpenMP)
-#	if (OPENMP_FOUND)
-#		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
-#	endif (OPENMP_FOUND)
-#endif (OPTION_OMP)
+if (OPTION_OMP)
+	find_package(OpenMP)
+	if (OPENMP_FOUND)
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
+	endif (OPENMP_FOUND)
+endif (OPTION_OMP)
 
 add_subdirectory (rtexif)
 add_subdirectory (rtengine)