diff --git a/bin/innodb/update_binaries_threaded.php b/bin/innodb/update_binaries_threaded.php
index 836c63a6d..965d47d33 100755
--- a/bin/innodb/update_binaries_threaded.php
+++ b/bin/innodb/update_binaries_threaded.php
@@ -27,7 +27,7 @@ while ($ps->runParentCode())
 			// Spawn another thread
 			$ps->childData = array_pop($groupList);
 			echo "[Thread-MASTER] Spawning new thread.  Still have " . count($groupList) ." group(s) to update after this\n";
-			$ps->spawnchild();
+			$ps->spawnChild();
 		}
 		else 
 		{
diff --git a/bin/myisam/update_binaries_threaded.php b/bin/myisam/update_binaries_threaded.php
index ac6cafd8d..6e472fe2b 100755
--- a/bin/myisam/update_binaries_threaded.php
+++ b/bin/myisam/update_binaries_threaded.php
@@ -27,7 +27,7 @@ while ($ps->runParentCode())
 			// Spawn another thread
 			$ps->childData = array_pop($groupList);
 			echo "[Thread-MASTER] Spawning new thread.  Still have " . count($groupList) ." group(s) to update after this\n";
-			$ps->spawnchild();
+			$ps->spawnChild();
 		}
 		else 
 		{