diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc
index 4b486aeea90ea2afb9cdd96a4dbe15c5bb2abd7a..f199e77cd4296cd3556641051072dabc9f5e51fa 100644
--- a/gcc/config/aarch64/aarch64.cc
+++ b/gcc/config/aarch64/aarch64.cc
@@ -16671,7 +16671,8 @@ aarch64_vector_costs::prefer_unrolled_loop () const
 
   if (dump_enabled_p ())
     dump_printf_loc (MSG_NOTE, vect_location, "Number of insns in"
-		     " unrolled Advanced SIMD loop = %d\n",
+		     " unrolled Advanced SIMD loop = "
+		     HOST_WIDE_INT_PRINT_UNSIGNED "\n",
 		     m_unrolled_advsimd_stmts);
 
   /* The balance here is tricky.  On the one hand, we can't be sure whether