diff --git a/main.c b/main.c
--- a/main.c
+++ b/main.c
@@ -75,13 +75,13 @@ int main(void)
 
     // Init OLED over SPI
     ssd1306_Init();
-    ssd1306_block_write();
+    ssd1306_clearscreen();
 
     // Startup screen 
     ssd1306_DrawString("therm v0.1", 1, 40);
     ssd1306_DrawString("protofusion.org/therm", 3, 0);
     delay(1500);
-    ssd1306_block_write();
+    ssd1306_clearscreen();
 
     // Main loop
     while(1)
@@ -466,7 +466,7 @@ void machine()
 
     if(last_state != state) {
         // Clear screen on state change
-        ssd1306_block_write();
+        ssd1306_clearscreen();
     }
 }