diff --git a/.gitignore b/.gitignore
index 8e7ed2c9..4fb5d051 100644
--- a/.gitignore
+++ b/.gitignore
@@ -54,6 +54,9 @@ include/libopencmsis/stm32/
 include/libopencmsis/swm050/
 include/libopencmsis/vf6xx/
 
+# default Meson build directory
+/build/
+
 # Editor/IDE config files
 nbproject/
 .idea/