diff --git a/ChangeLog b/ChangeLog
index 04fe51fd7..6e9668257 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -26,6 +26,7 @@ $HeadURL$
 - 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 b706cc5ae..3c3c36442 100644
--- a/libraries/common.lib.php
+++ b/libraries/common.lib.php
@@ -492,7 +492,7 @@ if (!defined('PMA_MINIMUM_COMMON')) {
                 $pow = bcpow($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;