diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 9f3655be695d..af9d3469fb99 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -972,27 +972,27 @@ static void bootcmds(void)
 static int cpu_cmd(void)
 {
 #ifdef CONFIG_SMP
-	unsigned long cpu;
+	unsigned long cpu, first_cpu, last_cpu;
 	int timeout;
-	int count;
 
 	if (!scanhex(&cpu)) {
 		/* print cpus waiting or in xmon */
 		printf("cpus stopped:");
-		count = 0;
+		last_cpu = first_cpu = NR_CPUS;
 		for_each_possible_cpu(cpu) {
 			if (cpumask_test_cpu(cpu, &cpus_in_xmon)) {
-				if (count == 0)
-					printf(" %x", cpu);
-				++count;
-			} else {
-				if (count > 1)
-					printf("-%x", cpu - 1);
-				count = 0;
+				if (cpu == last_cpu + 1) {
+					last_cpu = cpu;
+				} else {
+					if (last_cpu != first_cpu)
+						printf("-%lx", last_cpu);
+					last_cpu = first_cpu = cpu;
+					printf(" %lx", cpu);
+				}
 			}
 		}
-		if (count > 1)
-			printf("-%x", NR_CPUS - 1);
+		if (last_cpu != first_cpu)
+			printf("-%lx", last_cpu);
 		printf("\n");
 		return 0;
 	}