diff --git a/lib/coffeescript/lexer.js b/lib/coffeescript/lexer.js
index 20860559ac..4525dd9461 100644
--- a/lib/coffeescript/lexer.js
+++ b/lib/coffeescript/lexer.js
@@ -886,7 +886,7 @@
       if (value === ';') {
         this.seenFor = this.seenImport = this.seenExport = false;
         tag = 'TERMINATOR';
-      } else if (value === '*' && prev[0] === 'EXPORT') {
+      } else if (value === '*' && (prev != null ? prev[0] : void 0) === 'EXPORT') {
         tag = 'EXPORT_ALL';
       } else if (indexOf.call(MATH, value) >= 0) {
         tag = 'MATH';
diff --git a/src/lexer.coffee b/src/lexer.coffee
index 7093d28b95..3feff70f81 100644
--- a/src/lexer.coffee
+++ b/src/lexer.coffee
@@ -664,7 +664,7 @@ exports.Lexer = class Lexer
     if value is ';'
       @seenFor = @seenImport = @seenExport = no
       tag = 'TERMINATOR'
-    else if value is '*' and prev[0] is 'EXPORT'
+    else if value is '*' and prev?[0] is 'EXPORT'
       tag = 'EXPORT_ALL'
     else if value in MATH            then tag = 'MATH'
     else if value in COMPARE         then tag = 'COMPARE'