diff --git a/gcc/testsuite/gnat.dg/pack13.adb b/gcc/testsuite/gnat.dg/pack13.adb
index dd9cb09cf7b6051af4738fe652b6d2ef31596f96..6581a53f99870929f922f2cf5f1ed1c58c8ba33b 100644
--- a/gcc/testsuite/gnat.dg/pack13.adb
+++ b/gcc/testsuite/gnat.dg/pack13.adb
@@ -1,4 +1,4 @@
--- [ dg-do compile }
+-- { dg-do compile }
 
 package body Pack13 is
 
diff --git a/gcc/testsuite/gnat.dg/size_attribute.adb b/gcc/testsuite/gnat.dg/size_attribute.adb
index 25642e0b0aad86413b92780ba62d73218c7d1d52..ec655f67a868a1cdf2f6d699577b1a4b6ddea685 100644
--- a/gcc/testsuite/gnat.dg/size_attribute.adb
+++ b/gcc/testsuite/gnat.dg/size_attribute.adb
@@ -1,5 +1,5 @@
 -- PR middle-end/35823
--- { dg-do compile ]
+-- { dg-do compile }
 
 procedure Size_Attribute (Arg : in String) is
    Size : constant Natural := Arg'Size;
diff --git a/gcc/testsuite/gnat.dg/subp_elim_errors.adb b/gcc/testsuite/gnat.dg/subp_elim_errors.adb
index 669e8772117e228b1b19562b27208a8a86e3d0ea..1b8c3f23054dd33e7ca578eee0616f7dfc9284b7 100644
--- a/gcc/testsuite/gnat.dg/subp_elim_errors.adb
+++ b/gcc/testsuite/gnat.dg/subp_elim_errors.adb
@@ -1,4 +1,4 @@
--- [ dg-do compile }
+-- { dg-do compile }
 
 with System;