diff --git a/arch/xtensa/include/asm/coprocessor.h b/arch/xtensa/include/asm/coprocessor.h
index 65a285d8d3fb..75c94a1658b0 100644
--- a/arch/xtensa/include/asm/coprocessor.h
+++ b/arch/xtensa/include/asm/coprocessor.h
@@ -13,6 +13,7 @@
 #define _XTENSA_COPROCESSOR_H
 
 #include <linux/stringify.h>
+#include <variant/core.h>
 #include <variant/tie.h>
 #include <asm/types.h>