diff --git a/libs/Smarty_Compiler.class.php b/libs/Smarty_Compiler.class.php
index a4a9193e..d9f0e9d3 100644
--- a/libs/Smarty_Compiler.class.php
+++ b/libs/Smarty_Compiler.class.php
@@ -122,7 +122,7 @@ class Smarty_Compiler extends Smarty {
 		// $foo[5][blah]
 		// $foo[5].bar[$foobar][4]
 		$this->_dvar_math_regexp = '[\+\-\*\/\%]';
-		$this->_dvar_math_var_regexp = '[\$\w\.\+\-\*\/\%\d\|\:\>\[\]]';
+		$this->_dvar_math_var_regexp = '[\$\w\.\+\-\*\/\%\d\|\>\[\]]';
 		$this->_dvar_num_var_regexp = '\-?\d+(?:\.\d+)?' . $this->_dvar_math_var_regexp;
 		$this->_dvar_guts_regexp = '\w+(?:' . $this->_var_bracket_regexp
 				. ')*(?:\.\$?\w+(?:' . $this->_var_bracket_regexp . ')*)*(?:' . $this->_dvar_math_regexp . '(?:\-?\d+(?:\.\d+)?|' . $this->_dvar_math_var_regexp . '*))?';