diff --git a/conf/distro/include/angstrom-core-tweaks.inc b/conf/distro/include/angstrom-core-tweaks.inc
index 043f3d7..82e6751 100644
--- a/conf/distro/include/angstrom-core-tweaks.inc
+++ b/conf/distro/include/angstrom-core-tweaks.inc
@@ -49,6 +49,10 @@ XSERVER_qemux86-64 = "xserver-xorg \
 TOOLCHAIN_PATH ?= "${STAGING_DIR_NATIVE}${prefix_native}/bin/${TUNE_PKGARCH}${HOST_VENDOR}-${HOST_OS}"
 TOOLCHAIN_SYSPATH ?= "${TOOLCHAIN_PATH}/${TARGET_SYS}"
 
+# Package manager selection, angstrom uses ANGSTROM_PKG_FORMAT
+
+PACKAGE_CLASSES = " "
+
 # Image.bbclass stuff:
 
 # Override default fs-perms.txt that messes with our /var setup: