diff --git a/attn/meson.build b/attn/meson.build
index a2b01d8..674e302 100644
--- a/attn/meson.build
+++ b/attn/meson.build
@@ -1,10 +1,12 @@
 # async gpio monitor needs boost library
-boost_args = ['-DBOOST_ASIO_DISABLE_THREADS',
-              '-DBOOST_ERROR_CODE_HEADER_ONLY',
-              '-DBOOST_SYSTEM_NO_DEPRECATED']
+boost_args = [
+    '-DBOOST_ASIO_DISABLE_THREADS',
+    '-DBOOST_ERROR_CODE_HEADER_ONLY',
+    '-DBOOST_SYSTEM_NO_DEPRECATED',
+]
 
 # dependency to link gpiod support
-libgpiod = dependency('libgpiod', version : '>=1.4.1')
+libgpiod = dependency('libgpiod', version: '>=1.4.1')
 
 # get openpower-hw-diags build configuration
 attn_conf = configuration_data()
@@ -25,8 +27,7 @@
     input: 'attn_handler.service.in',
     output: 'attn_handler.service',
     install: true,
-    install_dir:
-        dependency('systemd').get_variable('systemdsystemunitdir')
+    install_dir: dependency('systemd').get_variable('systemdsystemunitdir'),
 )
 
 # install attention handler config file
@@ -35,7 +36,7 @@
     input: 'attn_config.in',
     output: 'attn_config',
     install: true,
-    install_dir: join_paths(get_option('sysconfdir'), 'default')
+    install_dir: join_paths(get_option('sysconfdir'), 'default'),
 )
 
 # Source files.
@@ -58,22 +59,17 @@
 pel_src = files(
     'pel/extended_user_header.cpp',
     'pel/pel_minimal.cpp',
-    'pel/private_header.cpp',
     'pel/primary_src.cpp',
+    'pel/private_header.cpp',
     'pel/user_header.cpp',
 )
 
 # Library dependencies.
-attn_deps = [
-    libgpiod,
-    libpdbg_dep,
-    phosphor_logging_dep,
-    sdbusplus_dep,
-]
+attn_deps = [libgpiod, libpdbg_dep, phosphor_logging_dep, sdbusplus_dep]
 
 # conditional library dependencies
 if get_option('phal').allowed()
-  attn_deps += libphal_dep
+    attn_deps += libphal_dep
 endif
 
 # Create static library.
@@ -81,8 +77,8 @@
     'attn_lib',
     attn_src,
     pel_src,
-    include_directories : incdir,
-    dependencies : attn_deps,
-    cpp_args : [boost_args],
-    install : false,
+    include_directories: incdir,
+    dependencies: attn_deps,
+    cpp_args: [boost_args],
+    install: false,
 )