diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index ce4b71119c362ea12739b7e55669f400d27b5e32..3bf4df7f52d7ec16a6ac108b8a1c3308d9481548 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -602,7 +602,6 @@ unsigned long native_calibrate_tsc(void)
 		case INTEL_FAM6_KABYLAKE_DESKTOP:
 			crystal_khz = 24000;	/* 24.0 MHz */
 			break;
-		case INTEL_FAM6_SKYLAKE_X:
 		case INTEL_FAM6_ATOM_DENVERTON:
 			crystal_khz = 25000;	/* 25.0 MHz */
 			break;