--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2798,7 +2798,7 @@
 
 			break;
 
-		case PMT_TYPE_XTAL_TIME:
+		case PMT_TYPE_XTAL_TIME: ; //add empty statement.
 			const unsigned long value_raw = t->pmt_counter[i];
 			const double value_converted = 100.0 * value_raw / crystal_hz / interval_float;
 
@@ -2879,7 +2879,7 @@
 
 			break;
 
-		case PMT_TYPE_XTAL_TIME:
+		case PMT_TYPE_XTAL_TIME: ; //add empty statement.
 			const unsigned long value_raw = c->pmt_counter[i];
 			const double value_converted = 100.0 * value_raw / crystal_hz / interval_float;
 
@@ -3078,7 +3078,7 @@
 
 			break;
 
-		case PMT_TYPE_XTAL_TIME:
+		case PMT_TYPE_XTAL_TIME: ; //add empty statement.
 			const unsigned long value_raw = p->pmt_counter[i];
 			const double value_converted = 100.0 * value_raw / crystal_hz / interval_float;
 
