diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8ab44f..f5f16c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,7 @@
 * BUGFIX: group dependencies specified with the option '--with' were ignored
   (issue #236)
 * BUGFIX: writing list of 'systems' to module configuration file fixed
-  (issue #235)
+  (issues #235, #243)
 * CHANGE: files in `$PMODULES_TMPDIR/<module>` are now removed before
   and after building a module (except cleanup has been disbaled).
   (issue #242)
diff --git a/Pmodules/libpbuild.bash b/Pmodules/libpbuild.bash
index 6857c5d..a90d481 100644
--- a/Pmodules/libpbuild.bash
+++ b/Pmodules/libpbuild.bash
@@ -897,9 +897,9 @@ declare -a Systems
 pbuild.build_module_yaml(){
 	local -- module_name="$1"
 	local -- module_version="$2"
-	Config=$3
+	Config="$3"
 	local -- module_relstage="${Config['relstage']}"
-	Systems=( ${Config['systems']} )
+	readarray -t Systems <<< "${Config['systems']}"
 	shift 3
 	_build_module "${module_name}" "${module_version}" "${module_relstage}" "$@"
 }