diff --git a/fm_rx.grc b/fm_rx.grc
index 4d6fba7..37c828f 100644
--- a/fm_rx.grc
+++ b/fm_rx.grc
@@ -484,7 +484,7 @@
     </param>
     <param>
       <key>value</key>
-      <value>3.14159265354</value>
+      <value>3.14159265359</value>
     </param>
   </block>
   <block>