diff --git a/software/memtest/main.c b/software/memtest/main.c
index 8e7bcdd98..3e03b129f 100644
--- a/software/memtest/main.c
+++ b/software/memtest/main.c
@@ -20,9 +20,9 @@ static void membw_service(void)
 		nr = lasmicon_bandwidth_nreads_read();
 		nw = lasmicon_bandwidth_nwrites_read();
 		f = identifier_frequency_read();
-		rdb = nr*f >> (24 - 7);
-		wrb = nw*f >> (24 - 7);
-		printf("read:%4dMbps  write:%4dMbps  all:%4dMbps\n", rdb/1000000, wrb/1000000, (rdb + wrb)/1000000);
+		rdb = (nr*f >> (24 - 7))/1000000ULL;
+		wrb = (nw*f >> (24 - 7))/1000000ULL;
+		printf("read:%5dMbps  write:%5dMbps  all:%5dMbps\n", rdb, wrb, rdb + wrb);
 	}
 }