diff --git a/conda/llvmdev-or1k/meta.yaml b/conda/llvmdev-or1k/meta.yaml
index bb3ad55bf..f7799c7c9 100644
--- a/conda/llvmdev-or1k/meta.yaml
+++ b/conda/llvmdev-or1k/meta.yaml
@@ -7,7 +7,7 @@ source:
   git_tag: master
 
 build:
-  number: 2
+  number: 4
 
 requirements:
   build:
diff --git a/conda/llvmlite-artiq/bld.bat b/conda/llvmlite-artiq/bld.bat
index bbb38d3c9..8b58512c1 100644
--- a/conda/llvmlite-artiq/bld.bat
+++ b/conda/llvmlite-artiq/bld.bat
@@ -4,5 +4,5 @@ set CMAKE_PREFIX_PATH=%LIBRARY_PREFIX%
 @rem Ensure there are no build leftovers (CMake can complain)
 if exist ffi\build rmdir /S /Q ffi\build
 
-%PYTHON% -S setup.py install
+%PYTHON% setup.py install
 if errorlevel 1 exit 1
diff --git a/conda/llvmlite-artiq/meta.yaml b/conda/llvmlite-artiq/meta.yaml
index e22929410..56063b261 100644
--- a/conda/llvmlite-artiq/meta.yaml
+++ b/conda/llvmlite-artiq/meta.yaml
@@ -15,7 +15,7 @@ requirements:
         - python
 
 build:
-    number: 3
+    number: 4
 
 test:
     imports: