diff --git a/src/plugins/projectexplorer/jsonwizard/jsonwizardfactory.cpp b/src/plugins/projectexplorer/jsonwizard/jsonwizardfactory.cpp
index c8d8acca67970272d0dea6fc817d42903ee168f6..25625d6360345614af828fcddfd9d62eac86f1e0 100644
--- a/src/plugins/projectexplorer/jsonwizard/jsonwizardfactory.cpp
+++ b/src/plugins/projectexplorer/jsonwizard/jsonwizardfactory.cpp
@@ -557,7 +557,7 @@ bool JsonWizardFactory::initialize(const QVariantMap &data, const QDir &baseDir,
 
     // Generator:
     QVariantList list = objectOrList(data.value(QLatin1String(GENERATOR_KEY)), errorMessage);
-    if (list.isEmpty()) {
+    if (!errorMessage->isEmpty()) {
         *errorMessage = tr("When parsing \"generators\": %1").arg(*errorMessage);
         return false;
     }