diff --git a/conda/artiq-kc705-nist_clock/build.sh b/conda/artiq-kc705-nist_clock/build.sh
index f607e39b2..f0275be02 100644
--- a/conda/artiq-kc705-nist_clock/build.sh
+++ b/conda/artiq-kc705-nist_clock/build.sh
@@ -1,8 +1,5 @@
 #!/bin/bash
 
-BUILD_SETTINGS_FILE=$HOME/.m-labs/build_settings.sh
-[ -f $BUILD_SETTINGS_FILE ] && . $BUILD_SETTINGS_FILE
-
 SOC_PREFIX=$PREFIX/lib/python3.5/site-packages/artiq/binaries/kc705-nist_clock
 mkdir -p $SOC_PREFIX
 
diff --git a/conda/artiq-kc705-nist_qc2/build.sh b/conda/artiq-kc705-nist_qc2/build.sh
index 982c28f0d..b60f39b3e 100644
--- a/conda/artiq-kc705-nist_qc2/build.sh
+++ b/conda/artiq-kc705-nist_qc2/build.sh
@@ -1,8 +1,5 @@
 #!/bin/bash
 
-BUILD_SETTINGS_FILE=$HOME/.m-labs/build_settings.sh
-[ -f $BUILD_SETTINGS_FILE ] && . $BUILD_SETTINGS_FILE
-
 SOC_PREFIX=$PREFIX/lib/python3.5/site-packages/artiq/binaries/kc705-nist_qc2
 mkdir -p $SOC_PREFIX