diff --git a/conda/artiq-board/meta.yaml b/conda/artiq-board/meta.yaml
index 15f72989d..9c88691ac 100644
--- a/conda/artiq-board/meta.yaml
+++ b/conda/artiq-board/meta.yaml
@@ -20,11 +20,11 @@ outputs:
       - lib
     requirements:
       run:
-        - artiq {{ "{tag} {number}+git{hash}".format(tag=environ["GIT_DESCRIBE_TAG"], number=environ["GIT_DESCRIBE_NUMBER"], hash=environ["GIT_FULL_HASH"][:8]) }}
+        - artiq {{ "{tag} py_{number}+git{hash}".format(tag=environ["GIT_DESCRIBE_TAG"], number=environ["GIT_DESCRIBE_NUMBER"], hash=environ["GIT_FULL_HASH"][:8]) }}
 
 requirements:
   build:
-    - artiq-dev {{ "{tag} {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["GIT_DESCRIBE_TAG"], number=environ["GIT_DESCRIBE_NUMBER"], hash=environ["GIT_FULL_HASH"][:8]) }}
 
 about:
   home: https://m-labs.hk/artiq