diff --git a/orin.c b/orin.c
index 4457993..7d0582d 100644
--- a/orin.c
+++ b/orin.c
@@ -2194,7 +2194,7 @@ int gpioSetPWMfrequency(unsigned gpio, unsigned frequency) {
       printf("Only gpio numbers 15, 32 and 33 are accepted\n");
     }		
   }
-  else {printf("Only frequencies from 400 to 1595000 Hz are allowed\n");
+  else {printf("Only frequencies from 50 to 1595000 Hz are allowed\n");
     status =-2;}
   return status;
 }