diff --git a/conf/distro/include/angstrom.inc b/conf/distro/include/angstrom.inc
index da65ca8..1dfc610 100644
--- a/conf/distro/include/angstrom.inc
+++ b/conf/distro/include/angstrom.inc
@@ -171,7 +171,7 @@ DISTRO_FEATURES += "pulseaudio"
 
 # OpenGL support
 DISTRO_FEATURES += "opengl"
-PREFERRED_PROVIDER_virtual/libgl ??= "mesa-gl"
+PREFERRED_PROVIDER_virtual/libgl ?= "mesa-gl"
 
 # Inherit the default LIBC features superset from OE-core
 DISTRO_FEATURES += "${DISTRO_FEATURES_LIBC}"