diff --git a/scripts/install b/scripts/install
index 6f45c11..ecff842 100755
--- a/scripts/install
+++ b/scripts/install
@@ -141,7 +141,7 @@ ynh_script_progression --message="Setting up source files..." --weight=1
 ### `ynh_setup_source` use the file conf/app.src
 
 # detect_arch comes from _common.sh / personnal helpers
-architecture=detect_arch
+architecture=$(detect_arch)
 
 # Download, check integrity, uncompress and patch the source from app.src
 ynh_setup_source --dest_dir="$final_path" --source_id=$architecture
diff --git a/scripts/upgrade b/scripts/upgrade
index 6985023..3630a1b 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -84,8 +84,8 @@ then
 	ynh_script_progression --message="Upgrading source files..."
 
 	# detect_arch comes from _common.sh / personnal helpers
-	architecture=detect_arch
-
+	architecture=$(detect_arch)
+	
 	# Download, check integrity, uncompress and patch the source from app.src
 	ynh_setup_source --dest_dir="$final_path" --source_id=$architecture --keep="config.yaml"
 fi