diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h
index eb7cd1139d97..7f6d858ff47a 100644
--- a/arch/x86/include/asm/fpu/types.h
+++ b/arch/x86/include/asm/fpu/types.h
@@ -321,7 +321,7 @@ struct xstate_header {
 struct xregs_state {
 	struct fxregs_state		i387;
 	struct xstate_header		header;
-	u8				extended_state_area[0];
+	u8				extended_state_area[];
 } __attribute__ ((packed, aligned (64)));
 
 /*