diff --git a/Si5351_WSPR.ino b/Si5351_WSPR.ino
index 1c192f9..c48b530 100644
--- a/Si5351_WSPR.ino
+++ b/Si5351_WSPR.ino
@@ -12,7 +12,7 @@
 
 // Hardware Requirements
 // ---------------------
-// This firmware must be run on an Arduino Zero capable microcontroller
+// This firmware must be run on an Arduino AVR microcontroller
 //
 // Required Libraries
 // ------------------
@@ -96,7 +96,7 @@ void encode()
     // Now do the rest of the message
     for(i = 0; i < SYMBOL_COUNT; i++)
     {
-        si5351.set_freq((freq * 100) + (tx_buffer[i] * TONE_SPACING), 0, SI5351_CLK0);
+        si5351.set_freq((freq * 100) + (tx_buffer[i] * TONE_SPACING), SI5351_CLK0);
         proceed = false;
         while(!proceed);
     }
@@ -143,11 +143,10 @@ void setup()
   // Initialize the Si5351
   // Change the 2nd parameter in init if using a ref osc other
   // than 25 MHz
-  si5351.init(SI5351_CRYSTAL_LOAD_8PF, 0);
+  si5351.init(SI5351_CRYSTAL_LOAD_8PF, 0, CORRECTION);
 
   // Set CLK0 output
-  si5351.set_correction(CORRECTION);
-  si5351.set_freq(freq * 100, 0, SI5351_CLK0);
+  si5351.set_freq(freq * 100, SI5351_CLK0);
   si5351.drive_strength(SI5351_CLK0, SI5351_DRIVE_8MA); // Set for max power
   si5351.set_clock_pwr(SI5351_CLK0, 0); // Disable the clock initially