diff --git a/.travis.yml b/.travis.yml
index 3cdd5cb..5d6367c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,3 +23,7 @@ matrix:
         - sh autogen.sh --prefix=`pwd`/.local
         - make && make check && make install
         - rm -rf * ~/.local
+
+after_script:
+  - PRISM_LOG=${TRAVIS_BUILD_DIR}/utils/test-prism.log
+  - if [[ -e ${PRISM_LOG} ]]; then cat ${PRISM_LOG}; fi
diff --git a/utils/geom.c b/utils/geom.c
index d8b6140..1edd840 100644
--- a/utils/geom.c
+++ b/utils/geom.c
@@ -2558,7 +2558,7 @@ void display_prism_info(int indentby, prism *prsm)
   int nv;
   for(nv=0; nv<num_vertices; nv++)
    { vector3 v = matrix3x3_vector3_mult(m_p2c, vertices[nv]);
-     printf("%*s     {%g,%g,%g}\n",indentby,"",v.x,v.y,v.z);
+     printf("%*s     (%g,%g,%g)\n",indentby,"",v.x,v.y,v.z);
    }
 }