diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index c23c37312ef70..d85b99164212f 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -728,10 +728,8 @@ struct ath10k {
 	const void *firmware_data;
 	size_t firmware_len;
 
-	union {
-		const struct firmware *pre_cal_file;
-		const struct firmware *cal_file;
-	};
+	const struct firmware *pre_cal_file;
+	const struct firmware *cal_file;
 
 	struct {
 		const void *firmware_codeswap_data;