diff --git a/make-os b/make-os
index 9ff5eae..99b1d9b 100755
--- a/make-os
+++ b/make-os
@@ -34,6 +34,8 @@ set +e
 	if ! [ -d "$OPUS_IMAGEDIR_FINAL" ]; then
 		echo "Copying base image ..."
 		cp -a "$OPUS_IMAGEDIR_BASE" "$OPUS_IMAGEDIR_FINAL-tmp"
+		echo "$OPUS_SOURCES" > "$OPUS_IMAGEDIR_FINAL-tmp/etc/apt/sources.list"
+		
 		# Hardware
 		source apply-mod "$OPUS_HOME/mods/kernel" "$OPUS_IMAGEDIR_FINAL-tmp"
 		source apply-mod "$OPUS_HOME/mods/firmware-free" "$OPUS_IMAGEDIR_FINAL-tmp"
diff --git a/make-os-proprietary b/make-os-proprietary
index 6e0954c..f622f52 100755
--- a/make-os-proprietary
+++ b/make-os-proprietary
@@ -35,6 +35,8 @@ set +e
 	if ! [ -d "$OPUS_IMAGEDIR_FINAL" ]; then
 		echo "Copying base image ..."
 		cp -a "$OPUS_IMAGEDIR_BASE" "$OPUS_IMAGEDIR_FINAL-tmp"
+		echo "$OPUS_SOURCES" > "$OPUS_IMAGEDIR_FINAL-tmp/etc/apt/sources.list"
+		
 		# Hardware
 		source apply-mod "$OPUS_HOME/mods/kernel" "$OPUS_IMAGEDIR_FINAL-tmp"
 		source apply-mod "$OPUS_HOME/mods/firmware-free" "$OPUS_IMAGEDIR_FINAL-tmp"