diff --git a/src/SmileiMPI/SmileiMPI_test.cpp b/src/SmileiMPI/SmileiMPI_test.cpp
index 639b736a9..6de1892ad 100755
--- a/src/SmileiMPI/SmileiMPI_test.cpp
+++ b/src/SmileiMPI/SmileiMPI_test.cpp
@@ -102,6 +102,7 @@ void SmileiMPI_test::init( Params &params, DomainDecomposition *domain_decomposi
     // Initialize patch environment
     patch_count.resize( smilei_sz, 0 );
     Tcapabilities = smilei_sz;
+    use_BTIS3 = params.use_BTIS3;
 
     remove( "patch_load.txt" );