diff --git a/Contrib/Modern UI 2/Localization.nsh b/Contrib/Modern UI 2/Localization.nsh
index c489a8b4..eda5a682 100644
--- a/Contrib/Modern UI 2/Localization.nsh	
+++ b/Contrib/Modern UI 2/Localization.nsh	
@@ -33,6 +33,10 @@ Localization
   !verbose push
   !verbose ${MUI_VERBOSE}
 
+  !ifndef MUI_PAGE_UNINSTALLER_PREFIX
+    !warning "MUI_LANGUAGE should be inserted after the MUI_[UN]PAGE_* macros"
+  !endif
+
   !insertmacro MUI_INSERT
 
   LoadLanguageFile "${NSISDIR}\Contrib\Language files\${NLFID}.nlf"
diff --git a/Contrib/Modern UI/System.nsh b/Contrib/Modern UI/System.nsh
index 8b5a12ec..eac5dd43 100644
--- a/Contrib/Modern UI/System.nsh	
+++ b/Contrib/Modern UI/System.nsh	
@@ -2074,6 +2074,10 @@ Var MUI_TEMP2
   !verbose push
   !verbose ${MUI_VERBOSE}
 
+  !ifndef MUI_PAGE_UNINSTALLER_PREFIX
+    !warning "MUI_LANGUAGE should be inserted after the MUI_[UN]PAGE_* macros"
+  !endif
+
   !insertmacro MUI_INSERT
 
   LoadLanguageFile "${NSISDIR}\Contrib\Language files\${NLFID}.nlf"