diff --git a/cmake/jkqtplotter_common_qtsettings.cmake b/cmake/jkqtplotter_common_qtsettings.cmake
index 150b1d09b5..b8faf119ca 100644
--- a/cmake/jkqtplotter_common_qtsettings.cmake
+++ b/cmake/jkqtplotter_common_qtsettings.cmake
@@ -5,6 +5,11 @@ set(CMAKE_AUTORCC ON)
 set(CMAKE_AUTOUIC ON)
 
 find_package(QT NAMES Qt6 Qt5 COMPONENTS Core REQUIRED)
+
+if(QT_VERSION_MAJOR LESS 5)
+    message(FATAL_ERROR "Minimum supported Qt version is 5, but you are trying to compile against Qt${QT_VERSION_MAJOR}")
+endif()
+
 find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Core Gui Widgets Svg Xml OpenGL REQUIRED)
 if(${QT_VERSION_MAJOR} VERSION_GREATER_EQUAL "6")
     find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS OpenGLWidgets)