diff --git a/examples/rfnoc/rfnoc_fft.grc b/examples/rfnoc/rfnoc_fft.grc
index 5fa06c5..781489f 100644
--- a/examples/rfnoc/rfnoc_fft.grc
+++ b/examples/rfnoc/rfnoc_fft.grc
@@ -1094,7 +1094,7 @@
     </param>
     <param>
       <key>x_units</key>
-      <value>"dB"</value>
+      <value>"Mhz"</value>
     </param>
     <param>
       <key>ymax</key>
@@ -1110,7 +1110,7 @@
     </param>
     <param>
       <key>y_units</key>
-      <value>"MHz"</value>
+      <value>"dB"</value>
     </param>
   </block>
   <block>