diff --git a/src/Templates/EOF1/EOF1-generator.js b/src/Templates/EOF1/EOF1-generator.js
index 4433b96659f..73fc7a4ded2 100755
--- a/src/Templates/EOF1/EOF1-generator.js
+++ b/src/Templates/EOF1/EOF1-generator.js
@@ -90,7 +90,7 @@ const encode = hash => {
 // Create a valid code section in an EOF1 structure
 const createEOF1Code = (codeList, maxStacks) => {
     // Start from a valid copy
-    eof1 = cloneEof1Good()
+    let eof1 = cloneEof1Good()
 
     // Size of sections
     eof1.sections[0].size = codeList.length*4