diff --git a/eo/CMakeLists.txt b/eo/CMakeLists.txt
index 52840cf64..5b8840017 100644
--- a/eo/CMakeLists.txt
+++ b/eo/CMakeLists.txt
@@ -43,7 +43,7 @@ ENABLE_LANGUAGE(C)
 ### 2) Include required modules / configuration files
 #####################################################################################
 
-FIND_PACKAGE(OpenMP REQUIRED)
+FIND_PACKAGE(OpenMP)
 IF(OPENMP_FOUND)
   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")