diff --git a/pkgs/development/tools/build-managers/gn/setup-hook.sh b/pkgs/development/tools/build-managers/gn/setup-hook.sh
index 850f18948cad..9f52f7778b9b 100644
--- a/pkgs/development/tools/build-managers/gn/setup-hook.sh
+++ b/pkgs/development/tools/build-managers/gn/setup-hook.sh
@@ -1,9 +1,12 @@
 gnConfigurePhase() {
     runHook preConfigure
 
-    echo "gn flags: $gnFlags ${gnFlagsArray[@]}"
+    local flagsArray=()
+    concatTo flagsArray gnFlags gnFlagsArray
 
-    gn gen out/Release --args="$gnFlags ${gnFlagsArray[@]}"
+    echoCmd 'gn flags' "${flagsArray[@]}"
+
+    gn gen out/Release --args="${flagsArray[*]}"
     cd out/Release/
 
     runHook postConfigure