diff --git a/arch/i386/kernel/irq.c b/arch/i386/kernel/irq.c
index 49ce4c31b713fc56a690d701389bc047e72a5a50..061533e0cb5e8efa284258c3619665a287a786e5 100644
--- a/arch/i386/kernel/irq.c
+++ b/arch/i386/kernel/irq.c
@@ -227,7 +227,7 @@ int show_interrupts(struct seq_file *p, void *v)
 	if (i == 0) {
 		seq_printf(p, "           ");
 		for_each_online_cpu(j)
-			seq_printf(p, "CPU%d       ",j);
+			seq_printf(p, "CPU%-8d",j);
 		seq_putc(p, '\n');
 	}
 
diff --git a/arch/x86_64/kernel/irq.c b/arch/x86_64/kernel/irq.c
index d8bd0b345b1e2494f936765aef9e6a95da5a72dd..207ecdc39822acbfb7cef983b15b8e9385f5c0b2 100644
--- a/arch/x86_64/kernel/irq.c
+++ b/arch/x86_64/kernel/irq.c
@@ -39,7 +39,7 @@ int show_interrupts(struct seq_file *p, void *v)
 	if (i == 0) {
 		seq_printf(p, "           ");
 		for_each_online_cpu(j)
-			seq_printf(p, "CPU%d       ",j);
+			seq_printf(p, "CPU%-8d",j);
 		seq_putc(p, '\n');
 	}