diff --git a/docs/en/api-guides/build-system.rst b/docs/en/api-guides/build-system.rst
index 61680b4e1..e1c0c045e 100644
--- a/docs/en/api-guides/build-system.rst
+++ b/docs/en/api-guides/build-system.rst
@@ -76,7 +76,7 @@ An example project directory tree might look like this::
 
 This example "myProject" contains the following elements:
 
-- A top-level project Makefile. This Makefile set the ``PROJECT_NAME`` variable and (optionally) defines
+- A top-level project Makefile. This Makefile sets the ``PROJECT_NAME`` variable and (optionally) defines
   other project-wide make variables. It includes the core ``$(IDF_PATH)/make/project.mk`` makefile which
   implements the rest of the ESP-IDF build system.