diff --git a/crypto/gcm.c b/crypto/gcm.c
index 27483f3..502da92 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -100,7 +100,7 @@
 		n = scatterwalk_clamp(&walk, len);
 
 		if (!n) {
-			scatterwalk_start(&walk, sg_next(walk.sg));
+			scatterwalk_start(&walk, scatterwalk_sg_next(walk.sg));
 			n = scatterwalk_clamp(&walk, len);
 		}