diff --git a/ChangeLog b/ChangeLog
index 9434b2075a..f1dd195f98 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -89,6 +89,7 @@ $HeadURL: https://phpmyadmin.svn.sourceforge.net/svnroot/phpmyadmin/trunk/phpMyA
 - RFE #1714760 Obey ShowCreateDb on the Databases tab
 - patch #1733762 Typo in message "INSERT DELAY", thanks to Victor Volkov
 - patch #1730171 Dead message strLanguageFileNotFound, thanks to Victor Volkov
+- patch #1731280 Avoid negative exponent in gmp_pow(), thanks to anosek
 
 2.10.1.0 (2007-04-23)
 =====================
diff --git a/libraries/common.lib.php b/libraries/common.lib.php
index 60958e5f0f..b1fa7b8998 100644
--- a/libraries/common.lib.php
+++ b/libraries/common.lib.php
@@ -50,7 +50,7 @@ function PMA_pow($base, $exp, $use_function = false)
             $pow = bcpow($base, $exp);
             break;
         case 'gmp_pow' :
-            $pow = gmp_strval(gmp_pow($base, $exp));
+             $pow = gmp_strval($exp >= 0 ? gmp_pow($base, $exp) : 0);
             break;
         case 'pow' :
             $base = (float) $base;