diff --git a/lib/tryapl.js b/lib/tryapl.js
index bb4b41e..d19fa14 100644
--- a/lib/tryapl.js
+++ b/lib/tryapl.js
@@ -96,7 +96,7 @@ function loadTryAPL () {
             // Continue collecting input lines if accumulated multiline input string has unclosed braces
             // --- To do ---
             // Extend Continue to deal with different types of multiline structures
-            Continue=t=>0<[...t.replace(/'[^']+'/g,"").replace(/⍝.*/g,"")].map(c=>c=="{"?1:c=="}"?-1:0).reduce((a,b)=>a+b)
+            Continue=t=>0<[...t.replace(/'[^']*'/g,"").replace(/⍝.*/g,"")].map(c=>c=="{"?1:c=="}"?-1:0).reduce((a,b)=>a+b)
 
 			if (getSessionInput(0)[0]=="\t") {
 			  log ("submit multiple lines")