diff --git a/Include/LangFile.nsh b/Include/LangFile.nsh
index 04817907..56ac8059 100644
--- a/Include/LangFile.nsh
+++ b/Include/LangFile.nsh
@@ -55,12 +55,11 @@ Copyright 
       !undef LANGFILE_IDNAME
     !endif
 
-    !ifdef "LANGFILE_${IDNAME}_NAME"
-      !undef "LANGFILE_${IDNAME}_NAME"
-    !endif
-
     !define LANGFILE_IDNAME "${IDNAME}"
-    !define "LANGFILE_${IDNAME}_NAME" "${NAME}"  
+
+    !ifndef "LANGFILE_${IDNAME}_NAME"
+      !define "LANGFILE_${IDNAME}_NAME" "${NAME}"
+    !endif
 
   !endif