diff --git a/conda/artiq-board/meta.yaml b/conda/artiq-board/meta.yaml
index dcef3e639..c1813ad5e 100644
--- a/conda/artiq-board/meta.yaml
+++ b/conda/artiq-board/meta.yaml
@@ -22,6 +22,7 @@ outputs:
     requirements:
       run:
         - artiq {{ "{tag} py_{number}+git{hash}".format(tag=environ["GIT_DESCRIBE_TAG"], number=environ["GIT_DESCRIBE_NUMBER"], hash=environ["GIT_FULL_HASH"][:8]) }}
+    ignore_prefix_files: True
 
 requirements:
   build: