diff --git a/telem/README.md b/telem/README.md
index ef17230a..d843efeb 100644
--- a/telem/README.md
+++ b/telem/README.md
@@ -6,4 +6,4 @@ gcc -o readall -pedantic -Wall -Wextra -L./ readall.o -lwiringPi
 
 Then to run:
 
-./readll
+./readall