diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 73dd99374a..67210ffd79 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -875,7 +875,7 @@ FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
         .type = CPUID_FEATURE_WORD,
         .feat_names = {
             NULL, NULL, NULL, NULL,
-            "avx-vnni", "avx512-bf16", NULL, NULL,
+            "avx-vnni", "avx512-bf16", NULL, "cmpccxadd",
             NULL, NULL, "fzrm", "fsrs",
             "fsrc", NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index d243e290d3..d5843c1555 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -907,6 +907,8 @@ uint64_t x86_cpu_get_supported_feature_word(FeatureWord w,
 #define CPUID_7_1_EAX_AVX_VNNI          (1U << 4)
 /* AVX512 BFloat16 Instruction */
 #define CPUID_7_1_EAX_AVX512_BF16       (1U << 5)
+/* CMPCCXADD Instructions */
+#define CPUID_7_1_EAX_CMPCCXADD         (1U << 7)
 /* Fast Zero REP MOVS */
 #define CPUID_7_1_EAX_FZRM              (1U << 10)
 /* Fast Short REP STOS */