diff --git a/src/test/test_interpolate_projdata.cxx b/src/test/test_interpolate_projdata.cxx
index 46925eba91..5a4e27029a 100644
--- a/src/test/test_interpolate_projdata.cxx
+++ b/src/test/test_interpolate_projdata.cxx
@@ -496,7 +496,7 @@ InterpolationTests::scatter_interpolation_test_blocks_asymmetric()
                                      "BlocksOnCylindrical",
                                      10.0,
                                      16.0,
-                                     60.0,
+                                     120.0,
                                      96.0);
 
   auto proj_data_info = shared_ptr<ProjDataInfo>(