diff --git a/dev/01-ctools-activate.sh b/dev/01-ctools-activate.sh
index 43065c0..e79a4fb 100644
--- a/dev/01-ctools-activate.sh
+++ b/dev/01-ctools-activate.sh
@@ -3,3 +3,5 @@
 export CTOOLS=${CONDA_PREFIX}
 source ${CTOOLS}/bin/ctools-init.sh
 unset PYTHONPATH
+unset LD_LIBRARY_PATH
+unset DYLD_LIBRARY_PATH