diff --git a/cmake/QtPublicSbomHelpers.cmake b/cmake/QtPublicSbomHelpers.cmake
index 3767fb4ff26..b642ea3e4b6 100644
--- a/cmake/QtPublicSbomHelpers.cmake
+++ b/cmake/QtPublicSbomHelpers.cmake
@@ -369,7 +369,7 @@ function(_qt_internal_setup_sbom)
     endif()
 
     option(QT_GENERATE_SBOM "Generate SBOM documents in SPDX v2.3 tag:value format."
-        "${default_value}")
+        OFF)
 
     string(CONCAT help_string
         "Generate SBOM documents in SPDX v2.3 JSON format if required python dependency "