diff --git a/CMakeLists.txt b/CMakeLists.txt
index f689423131a9..322c88a854fe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -227,13 +227,14 @@ endif()
 include(CMakeDependentOption)
 
 option(QT6 "Build with Qt6" ON)
-cmake_dependent_option(
-  QML
-  "Build with QML"
-  ON
-  "QT6"
-  OFF
-)
+
+# Because of multiple concurrent definition of symbols caused by the rendergraph
+# compile definition we need to disable QML by default. This avoids the risk of
+# undefined behaviour in a stable build.
+# See: https://github.com/mixxxdj/mixxx/issues/14766
+# Once this is fixed we can revert the commit introducing this.
+option(QML "Build with QML" OFF)
+
 option(QOPENGL "Use QOpenGLWindow based widget instead of QGLWidget" ON)
 
 if(QOPENGL)