diff --git a/config/common.mk b/config/common.mk
index f028b87a..1515d1a5 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -26,7 +26,10 @@ ifneq ($(TARGET_BUILD_VARIANT),user)
 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += persist.sys.dun.override=0
 endif
 
-ifneq ($(TARGET_BUILD_VARIANT),eng)
+ifeq ($(TARGET_BUILD_VARIANT),eng)
+# Disable ADB authentication
+PRODUCT_SYSTEM_DEFAULT_PROPERTIES += ro.adb.secure=0
+else
 # Enable ADB authentication
 PRODUCT_SYSTEM_DEFAULT_PROPERTIES += ro.adb.secure=1
 endif