diff --git a/action.yml b/action.yml
index 8c7f9dc..990fe4c 100644
--- a/action.yml
+++ b/action.yml
@@ -233,6 +233,10 @@ runs:
         {
           echo "set -e"
           echo "set -x"
+          if [ "${{ inputs.env }}" = "conda" ]; then
+            echo "export PATH=\"$HOME/mambaforge/bin:\$PATH\""
+          fi
+
           echo "${{ inputs.custom_shell_commands_before }}"
         } > custom_commands.sh