diff --git a/lib/dunecommonam2cmake.lib b/lib/dunecommonam2cmake.lib
index a8415782bed460bbdfa35168c14b9bbf656a23f3..654aa774fdf1c3654e5074e9d40bc939668b9bc4 100644
--- a/lib/dunecommonam2cmake.lib
+++ b/lib/dunecommonam2cmake.lib
@@ -21,7 +21,7 @@ dune_common_options_am2cmake()
 
     # Check for --enable-parallel and otherwise deactivate MPI
     echo $PARAMS | grep \\-\\-enable-parallel
-    if test "$?" -eq 0 ; then
+    if test "$?" -ne 0 ; then
 	CMAKE_PARAMS="$CMAKE_PARAMS -DCMAKE_DISABLE_FIND_PACKAGE_MPI=TRUE"
     fi
     # Check for --disable-gxx0xcheck