diff --git a/src/load/load.c b/src/load/load.c
index 66787ff..1d4be76 100644
--- a/src/load/load.c
+++ b/src/load/load.c
@@ -32,7 +32,7 @@ static bool portb_disabled[8] = {0};
 
 static bool valid_load(uint16_t val)
 {
-    if(val > 527 && val < 1000) {
+    if(val > LOWTHRESH && val < HIGHTHRESH) {
         return true;
     }
     return false;