diff --git a/CMakeLists.txt b/CMakeLists.txt
index 200ecf40..04683a66 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -64,7 +64,7 @@ ecbuild_add_option( FEATURE ODB
 
 ecbuild_add_option( FEATURE MARS2GRIB
                     DEFAULT ON
-                    CONDITION HAVE_GRIB
+                    CONDITION HAVE_GRIB AND HAVE_ECKIT_GEO
                     DESCRIPTION "Build the MARS2GRIB encoder" )
 
 # Python bindings for mars2grib encoder