diff --git a/bin/pyenv-sh-activate b/bin/pyenv-sh-activate
index 870b8e7..6715e34 100755
--- a/bin/pyenv-sh-activate
+++ b/bin/pyenv-sh-activate
@@ -180,7 +180,7 @@ esac
 
 # anaconda/miniconda
 if [ -x "${prefix}/bin/conda" ]; then
-  if [[ "${venv}" != "${venv%/envs/*}" ]]; then
+  if [[ "${prefix}" != "${prefix%/envs/*}" ]]; then
     CONDA_DEFAULT_ENV="${venv##*/envs/}"
   else
     CONDA_DEFAULT_ENV="root"