diff --git a/src/corelib/tools/qvarlengtharray.h b/src/corelib/tools/qvarlengtharray.h
index d8dbe65b05c..c34a2b6f4e4 100644
--- a/src/corelib/tools/qvarlengtharray.h
+++ b/src/corelib/tools/qvarlengtharray.h
@@ -259,6 +259,7 @@ class QVarLengthArray
     friend class QVarLengthArray;
     using Base = QVLABase<T>;
     using Storage = QVLAStorage<sizeof(T), alignof(T), Prealloc>;
+    static_assert(Prealloc > 0, "QVarLengthArray Prealloc must be greater than 0.");
     static_assert(std::is_nothrow_destructible_v<T>, "Types with throwing destructors are not supported in Qt containers.");
     using Base::verify;
 
@@ -655,7 +656,6 @@ template <class T, qsizetype Prealloc>
 Q_INLINE_TEMPLATE QVarLengthArray<T, Prealloc>::QVarLengthArray(qsizetype asize)
 {
     this->s = asize;
-    static_assert(Prealloc > 0, "QVarLengthArray Prealloc must be greater than 0.");
     Q_ASSERT_X(size() >= 0, "QVarLengthArray::QVarLengthArray()", "Size must be greater than or equal to 0.");
     if (size() > Prealloc) {
         this->ptr = malloc(size() * sizeof(T));