diff --git a/src/libs/utils/filepath.cpp b/src/libs/utils/filepath.cpp
index a5a51b43bbe..26d6d667f90 100644
--- a/src/libs/utils/filepath.cpp
+++ b/src/libs/utils/filepath.cpp
@@ -2173,6 +2173,7 @@ FileFilter::FileFilter(const QStringList &nameFilters,
       fileFilters(fileFilters),
       iteratorFlags(flags)
 {
+    QTC_CHECK(this->fileFilters != QDir::Filters());
 }
 
 QStringList FileFilter::asFindArguments(const QString &path) const