diff --git a/src/Composer/Console/Application.php b/src/Composer/Console/Application.php
index e6ff7da9d..ccf83c943 100644
--- a/src/Composer/Console/Application.php
+++ b/src/Composer/Console/Application.php
@@ -262,7 +262,7 @@ class Application extends BaseApplication
             }
 
             if (isset($startTime)) {
-                $io->writeError('<info>Memory usage: '.round(memory_get_usage() / 1024 / 1024, 2).'MB (peak: '.round(memory_get_peak_usage() / 1024 / 1024, 2).'MB), time: '.round(microtime(true) - $startTime, 2).'s');
+                $io->writeError('<info>Memory usage: '.round(memory_get_usage() / 1024 / 1024, 2).'MiB (peak: '.round(memory_get_peak_usage() / 1024 / 1024, 2).'MiB), time: '.round(microtime(true) - $startTime, 2).'s');
             }
 
             restore_error_handler();