diff --git a/ci/install_hermes.sh b/ci/install_hermes.sh
index 4c139847a..9023f7496 100755
--- a/ci/install_hermes.sh
+++ b/ci/install_hermes.sh
@@ -19,6 +19,7 @@ cmake                                                      \
     -DCMAKE_CXX_COMPILER=`which mpicxx`                    \
     -DCMAKE_C_COMPILER=`which mpicc`                       \
     -DBUILD_SHARED_LIBS=ON                                 \
+    -DHERMES_ENABLE_COVERAGE=ON                            \
     -DHERMES_INTERCEPT_IO=ON                               \
     -DHERMES_COMMUNICATION_MPI=ON                          \
     -DHERMES_BUILD_BUFFER_POOL_VISUALIZER=ON               \