diff --git a/meta-phosphor/common/recipes-devtools/i2c-tools/i2c-tools_%.bbappend b/meta-phosphor/common/recipes-devtools/i2c-tools/i2c-tools_%.bbappend
index bdbdc67..599394d 100644
--- a/meta-phosphor/common/recipes-devtools/i2c-tools/i2c-tools_%.bbappend
+++ b/meta-phosphor/common/recipes-devtools/i2c-tools/i2c-tools_%.bbappend
@@ -1,4 +1,5 @@
+# Prefer the Yocto mirror over the direct lm-sensors download.
 SRC_URI_remove = "http://dl.lm-sensors.org/i2c-tools/releases/${BP}.tar.bz2"
-SRC_URI_prepend = "http://downloads.yoctoproject.org/mirror/sources/${BP}.tar.bz2"
+SRC_URI =+ "http://downloads.yoctoproject.org/mirror/sources/${BP}.tar.bz2"
 
 RDEPENDS_${PN}_remove = "${PN}-misc"