diff --git a/Writer/Parser.php b/Writer/Parser.php
index 02e9c30..9e5866c 100644
--- a/Writer/Parser.php
+++ b/Writer/Parser.php
@@ -1615,7 +1615,7 @@ class Spreadsheet_Excel_Writer_Parser extends PEAR
                     $this->_advance();  // eat the "," or ";"
                 }
                 else {
-                    return $this->raiseError("Syntax error: coma expected in ".
+                    return $this->raiseError("Syntax error: comma expected in ".
                                       "function $function, arg #{$num_args}");
                 }
                 $result2 = $this->_condition();