diff --git a/src/parser/ooga.js b/src/parser/ooga.js
index f53c7d0..7ee47b8 100644
--- a/src/parser/ooga.js
+++ b/src/parser/ooga.js
@@ -8209,7 +8209,7 @@ function peg$parse(input, options) {
   }
 
   function peg$parseChannelWriteExpression() {
-    var s0, s1, s2, s3, s4, s5;
+    var s0, s1, s2, s3, s4, s5, s6;
 
     s0 = peg$currPos;
     s1 = peg$parseExpression();
@@ -8226,8 +8226,14 @@ function peg$parse(input, options) {
         s4 = peg$parse__();
         s5 = peg$parseExpression();
         if (s5 !== peg$FAILED) {
-          peg$savedPos = s0;
-          s0 = peg$f114(s1, s5);
+          s6 = peg$parseEOS();
+          if (s6 !== peg$FAILED) {
+            peg$savedPos = s0;
+            s0 = peg$f114(s1, s5);
+          } else {
+            peg$currPos = s0;
+            s0 = peg$FAILED;
+          }
         } else {
           peg$currPos = s0;
           s0 = peg$FAILED;
diff --git a/src/parser/ooga.pegjs b/src/parser/ooga.pegjs
index f762ca4..0bf65c9 100644
--- a/src/parser/ooga.pegjs
+++ b/src/parser/ooga.pegjs
@@ -1086,7 +1086,7 @@ ChannelReadExpression
 
 
 ChannelWriteExpression
-    = channel:Expression __ "<-" __ value:Expression {
+    = channel:Expression __ "<-" __ value:Expression EOS {
         return {
             tag: "ChannelWriteExpression",
             channel: channel,