diff --git a/Tools/AP_Periph/README.md b/Tools/AP_Periph/README.md
index cd723266bb..f48198043f 100644
--- a/Tools/AP_Periph/README.md
+++ b/Tools/AP_Periph/README.md
@@ -77,7 +77,7 @@ To flash the bootloader use this:
 
 To build the bootloader use this:
 
- - Tools/scripts/build_bootloader.py f103-GPS
+ - Tools/scripts/build_bootloaders.py f103-GPS
 
 the resulting bootloader will be in Tools/bootloaders