diff --git a/gcc/testsuite/g++.target/loongarch/pr106828.C b/gcc/testsuite/g++.target/loongarch/pr106828.C
index 190c1db715f..0d13cbbd515 100644
--- a/gcc/testsuite/g++.target/loongarch/pr106828.C
+++ b/gcc/testsuite/g++.target/loongarch/pr106828.C
@@ -1,4 +1,4 @@
-/* { dg-do-preprocess } */
+/* { dg-do preprocess } */
 /* { dg-options "-mabi=lp64d -fsanitize=address" } */
 
 /* Tests whether the compiler supports compile option '-fsanitize=address'.  */