diff --git a/CMakeLists.txt b/CMakeLists.txt
index f7e5ada0b249d8a8a5cc77001a3a4b3b7e4bb07e..b62d2629fde12ad65f1155d6a9b03f053c1e3289 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -72,6 +72,8 @@ option(OGS_BUILD_METIS "Should metis and the partmesh util be built?" OFF)
 
 option(OGS_NO_EXTERNAL_LIBS "Builds OGS without any external dependencies." OFF)
 
+option(OGS_INSITU "Builds OGS with insitu visualization capabilities." OFF)
+
 # Linear solvers
 option(OGS_USE_LIS "Use Lis" OFF)