diff --git a/indexer/includes/actions/issue.php b/indexer/includes/actions/issue.php
index 2ba422b..ed062aa 100644
--- a/indexer/includes/actions/issue.php
+++ b/indexer/includes/actions/issue.php
@@ -93,6 +93,10 @@ function btnsIssue( $params=null, $data=null, $error=null){
     if(!$error && in_array($data->TICK,RESERVED_TICKS))
         $error = 'invalid: TICK (reserved)';
 
+    // Verify only GAS_ADDRESS can issue GAS token
+    if(!$error && strtoupper($data->TICK)=='GAS' && $data->SOURCE!=GAS_ADDRESS)        
+        $error = 'invalid: GAS_ADDRESS';
+
     // Get information on BTNS token
     $btInfo        = getTokenInfo($data->TICK);
     $isDistributed = isDistributed($data->TICK);
diff --git a/indexer/includes/config.php b/indexer/includes/config.php
index 3aa3db2..879eeb5 100644
--- a/indexer/includes/config.php
+++ b/indexer/includes/config.php
@@ -18,7 +18,7 @@
 define("MAX_TICK_LENGTH",250);
 
 // Reserved BTNS TICK names
-$reserved = array('BTC','XCP','GAS');
+$reserved = array('BTC','XCP');
 define("RESERVED_TICKS",$reserved);
 
 // Min/Max MAX_SUPPLY