diff --git a/pipeline/build_container.sh b/pipeline/build_container.sh
index 885c4f0..cc67f71 100644
--- a/pipeline/build_container.sh
+++ b/pipeline/build_container.sh
@@ -49,8 +49,8 @@ for dir in containers/*/; do
   BUILD_PLATFORM=""
     MULTISTAGE=""
   if [ -f "$PLATFORM_CONF" ]; then
-    BUILD_PLATFORM=$(grep -E '^[[:space:]]*platform[[:space:]]*=' "$PLATFORM_CONF" | tail -n 1 | cut -d '=' -f 2- | tr -d '[:space:]')
-      MULTISTAGE=$(grep -E '^[[:space:]]*multistage[[:space:]]*=' "$PLATFORM_CONF" | tail -n 1 | cut -d '=' -f 2- | tr -d '[:space:]')
+    BUILD_PLATFORM=$(grep -E '^[[:space:]]*platform[[:space:]]*=' "$PLATFORM_CONF" | tail -n 1 | cut -d '=' -f 2- | tr -d '[:space:]' || true)
+      MULTISTAGE=$(grep -E '^[[:space:]]*multistage[[:space:]]*=' "$PLATFORM_CONF" | tail -n 1 | cut -d '=' -f 2- | tr -d '[:space:]' || true)
     if [ -n "$BUILD_PLATFORM" ]; then
       echo "platform.conf trovato in $dir: uso platform=$BUILD_PLATFORM"
     else
@@ -68,7 +68,7 @@ for dir in containers/*/; do
       for ((target_index = 1; target_index <= BUILD_COUNT; target_index++)); do
         BUILD_TARGET=""
         if [ -n "$MULTISTAGE" ]; then
-          BUILD_TARGET=$(grep -E "^[[:space:]]*target${target_index}[[:space:]]*=" "$PLATFORM_CONF" | tail -n 1 | cut -d '=' -f 2- | tr -d '[:space:]')
+          BUILD_TARGET=$(grep -E "^[[:space:]]*target${target_index}[[:space:]]*=" "$PLATFORM_CONF" | tail -n 1 | cut -d '=' -f 2- | tr -d '[:space:]' || true)
           if [ -z "$BUILD_TARGET" ]; then
             echo "target${target_index} non valorizzato in $PLATFORM_CONF"
             exit 1