diff --git a/conda/artiq-kc705-phaser/meta.yaml b/conda/artiq-kc705-phaser/meta.yaml
index febaf8b4f..a30476c50 100644
--- a/conda/artiq-kc705-phaser/meta.yaml
+++ b/conda/artiq-kc705-phaser/meta.yaml
@@ -14,6 +14,7 @@ requirements:
   build:
     - migen 0.4
     - misoc 0.4
+    - jesd204b 0.1
     - llvm-or1k
     - binutils-or1k-linux >=2.27
     - rust-core-or1k