diff --git a/phpseclib/Math/BigInteger.php b/phpseclib/Math/BigInteger.php
index c7d01d4c..fe1f43c5 100644
--- a/phpseclib/Math/BigInteger.php
+++ b/phpseclib/Math/BigInteger.php
@@ -1561,7 +1561,7 @@ class BigInteger
             $temp_value = array($quotient_value[$q_index]);
             $temp = $temp->multiply($y);
             $temp_value = &$temp->value;
-            if (!count($temp_value)) {
+            if (count($temp_value)) {
                 $temp_value = array_merge($adjust, $temp_value);
             }