diff --git a/qemu/target/arm/cpu.h b/qemu/target/arm/cpu.h
index d23f8c99..0a43966f 100644
--- a/qemu/target/arm/cpu.h
+++ b/qemu/target/arm/cpu.h
@@ -1407,6 +1407,7 @@ enum arm_features {
     ARM_FEATURE_V8_SM4, /* implements SM4 part of v8 Crypto Extensions */
     ARM_FEATURE_V8_RDM, /* implements v8.1 simd round multiply */
     ARM_FEATURE_V8_FP16, /* implements v8.2 half-precision float */
+    ARM_FEATURE_V8_FCMA, /* has complex number part of v8.3 extensions.  */
 };
 
 static inline int arm_feature(CPUARMState *env, int feature)