diff --git a/conda/artiq-board/meta.yaml b/conda/artiq-board/meta.yaml
index d2ce3bdcf..93aeb6ec6 100644
--- a/conda/artiq-board/meta.yaml
+++ b/conda/artiq-board/meta.yaml
@@ -7,12 +7,12 @@ source:
 
 build:
   noarch: python
-  ignore_prefix_files: True
   number: {{ environ["GIT_DESCRIBE_NUMBER"] }}
   string: {{ environ["GIT_DESCRIBE_NUMBER"] }}+git{{ environ["GIT_FULL_HASH"][:8] }}
   script_env:
     - ARTIQ_TARGET
     - ARTIQ_VARIANT
+  detect_binary_files_with_prefix: False
 
 outputs:
   - name: artiq-{{ environ["ARTIQ_TARGET"] }}-{{ environ["ARTIQ_VARIANT"] }}
diff --git a/conda/artiq-sayma_rtm/meta.yaml b/conda/artiq-sayma_rtm/meta.yaml
index 0ef011026..89d0c371d 100644
--- a/conda/artiq-sayma_rtm/meta.yaml
+++ b/conda/artiq-sayma_rtm/meta.yaml
@@ -7,9 +7,9 @@ source:
 
 build:
   noarch: python
-  ignore_prefix_files: True
   number: {{ environ["GIT_DESCRIBE_NUMBER"] }}
   string: {{ environ["GIT_DESCRIBE_NUMBER"] }}+git{{ environ["GIT_FULL_HASH"][:8] }}
+  detect_binary_files_with_prefix: False
 
 requirements:
   build:
diff --git a/conda/artiq/meta.yaml b/conda/artiq/meta.yaml
index bbbaba571..f538f4b45 100644
--- a/conda/artiq/meta.yaml
+++ b/conda/artiq/meta.yaml
@@ -19,6 +19,7 @@ build:
     {% endfor %}
     {% endfor %}
   script: $PYTHON setup.py install --no-compile --single-version-externally-managed --record=record.txt
+  detect_binary_files_with_prefix: False
 
 requirements:
   build: