diff --git a/phosphor-regulators/src/meson.build b/phosphor-regulators/src/meson.build
index 2cc8347..b5bb9f4 100644
--- a/phosphor-regulators/src/meson.build
+++ b/phosphor-regulators/src/meson.build
@@ -9,7 +9,8 @@
     'actions/if_action.cpp',
     'actions/i2c_compare_bit_action.cpp',
     'actions/i2c_compare_byte_action.cpp',
-    'actions/i2c_compare_bytes_action.cpp'
+    'actions/i2c_compare_bytes_action.cpp',
+    'actions/i2c_write_byte_action.cpp'
 ]
 
 phosphor_regulators_library = static_library(