diff --git a/programs/test/zeroize.c b/programs/test/zeroize.c
index 5e6b58e..f315f3b 100644
--- a/programs/test/zeroize.c
+++ b/programs/test/zeroize.c
@@ -67,7 +67,7 @@
 
     if( argc != 2 )
     {
-        mbedtls_printf( "This program takes exactly 1 agument\n" );
+        mbedtls_printf( "This program takes exactly 1 argument\n" );
         usage();
         mbedtls_exit( exit_code );
     }