diff --git a/include/orm/tiny/utils/string.hpp b/include/orm/tiny/utils/string.hpp
index 2dc6e80cf..a334bf3f6 100644
--- a/include/orm/tiny/utils/string.hpp
+++ b/include/orm/tiny/utils/string.hpp
@@ -35,10 +35,12 @@ namespace Orm::Tiny::Utils
         /*! Convert a value to studly caps case. */
         static QString studly(QString string);
 
-#ifndef TINYORM_DISABLE_TOM
+#if !defined(TINYORM_DISABLE_TOM) || !defined(TINYORM_DISABLE_ORM)
         /*! Check if the given string is the number, signed or unsigned. */
         static bool isNumber(QStringView string, bool allowFloating = false);
+#endif
 
+#if !defined(TINYORM_DISABLE_TOM)
         /*! Split a string by the given width (not in the middle of a word). */
         static std::vector<QString>
         splitStringByWidth(const QString &string, int width);
diff --git a/src/orm/tiny/utils/string.cpp b/src/orm/tiny/utils/string.cpp
index 407782c10..ebe6ac4d4 100644
--- a/src/orm/tiny/utils/string.cpp
+++ b/src/orm/tiny/utils/string.cpp
@@ -113,7 +113,7 @@ QString String::studly(QString string)
     return (*studlyCache)[std::move(key)] = value.replace(SPACE, "");
 }
 
-#ifndef TINYORM_DISABLE_TOM
+#if !defined(TINYORM_DISABLE_TOM) || !defined(TINYORM_DISABLE_ORM)
 bool String::isNumber(const QStringView string, const bool allowFloating)
 {
     /* Performance boost was amazing after the QRegularExpression has been removed,
@@ -150,7 +150,9 @@ bool String::isNumber(const QStringView string, const bool allowFloating)
 
     return nonDigit == string.cend();
 }
+#endif
 
+#ifndef TINYORM_DISABLE_TOM
 namespace
 {
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)