diff --git a/src/plot.cpp b/src/plot.cpp
index a8047c13a..88593f4a3 100644
--- a/src/plot.cpp
+++ b/src/plot.cpp
@@ -1305,8 +1305,12 @@ void ProjectionPlot::create_output() const
 
             int32_t i_surface = std::abs(p.surface()) - 1;
             if (i_surface > 0 && model::surfaces[i_surface]->geom_type_ == GeometryType::DAG) {
+#ifdef DAGMC
               int32_t i_cell = next_cell(i_surface, p.cell_last(p.n_coord() - 1), p.lowest_coord().universe);
               inside_cell = i_cell >= 0;
+#else
+              fatal_error("Not compiled for DAGMC, but somehow you have a DAGCell!");
+#endif
             } else {
               inside_cell = exhaustive_find_cell(p);
             }