diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 053a883247ba68ad4f68eb88971a33a881196840..eae84cc39d3f10e984c93e11cb4a94c160bc6a80 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -478,7 +478,7 @@ static int __init esp4_init(void)
 {
 	struct xfrm_decap_state decap;
 
-	if (sizeof(struct esp_decap_data)  <
+	if (sizeof(struct esp_decap_data)  >
 	    sizeof(decap.decap_data)) {
 		extern void decap_data_too_small(void);