diff --git a/modules/upgrade_dist.sh b/modules/upgrade_dist.sh
index fefb6fc..2725a6a 100644
--- a/modules/upgrade_dist.sh
+++ b/modules/upgrade_dist.sh
@@ -69,7 +69,7 @@ upgrade_dist()
     fi
 
     # Remplace source.list from dist with ours (be smarter)
-    if [[ NO_MAIN_SOURCE==true ]]; then
+    if [[ NO_MAIN_SOURCE == true ]]; then
         install_file "pkgman/${SYS_DIST}_${SYS_VER}.list" "/etc/apt/sources.list.d/debian.${SOURCE_EXT}"
     else
 	# We don't use SOURCE_EXT