diff --git a/lib/gpde/n_les_assemble.c b/lib/gpde/n_les_assemble.c
index 0d90e09c4f7..fb08ed8046d 100644
--- a/lib/gpde/n_les_assemble.c
+++ b/lib/gpde/n_les_assemble.c
@@ -875,6 +875,8 @@ int N_les_integrate_dirichlet_2d(N_les *les, N_geom_data *geom,
                 count++;
         }
     }
+    G_free(dvect1);
+    G_free(dvect2);
 
     return 0;
 }