diff --git a/conda/artiq-board/meta.yaml b/conda/artiq-board/meta.yaml
index c1813ad5e..e8d67b6bf 100644
--- a/conda/artiq-board/meta.yaml
+++ b/conda/artiq-board/meta.yaml
@@ -26,7 +26,7 @@ outputs:
 
 requirements:
   build:
-    - artiq-dev {{ "{tag} py_{number}+git{hash}".format(tag=environ["GIT_DESCRIBE_TAG"], number=environ["GIT_DESCRIBE_NUMBER"], hash=environ["GIT_FULL_HASH"][:8]) }}
+    - artiq-dev {{ "{tag} py_{number}+git{hash}".format(tag=environ.get("GIT_DESCRIBE_TAG", "condabug"), number=environ["GIT_DESCRIBE_NUMBER"], hash=environ["GIT_FULL_HASH"][:8]) }}
 
 about:
   home: https://m-labs.hk/artiq