diff --git a/Fit/3rdparty/RootMinimizers/CMakeLists.txt b/Fit/3rdparty/RootMinimizers/CMakeLists.txt
index 6ec53f2b4099b0fba27ba4220830abf310d4bb23..cad33ed305b680d2e69822c0162d8976140c50a0 100644
--- a/Fit/3rdparty/RootMinimizers/CMakeLists.txt
+++ b/Fit/3rdparty/RootMinimizers/CMakeLists.txt
@@ -26,7 +26,7 @@ if(NOT WIN32)
       string(APPEND CMAKE_CXX_FLAGS " -Wno-dangling-gsl")
     endif()
 else()
-    string(APPEND CMAKE_CXX_FLAGS " /wd4244 /wd4267")
+    string(APPEND CMAKE_CXX_FLAGS " /wd4244 /wd4267 /wd5033")
 endif()
 
 add_library(${library_name} STATIC ${source_files})