diff --git a/src/p_setup.c b/src/p_setup.c
index 146d5d30235416dfd9a4d42ada19f3acf3b8467e..fa1b5bfb85b16ac047aee6d8fa6e311fd35011d2 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -5359,7 +5359,7 @@ static void P_ConvertBinaryLinedefTypes(void)
 			lines[i].args[0] = tag;
 			lines[i].args[1] = sides[lines[i].sidenum[0]].textureoffset >> FRACBITS;
 			lines[i].args[2] = sides[lines[i].sidenum[0]].rowoffset >> FRACBITS;
-			lines[i].args[3] = (lines[i].sidenum[1] != 0xffff) ? sides[lines[i].sidenum[1]].rowoffset >> FRACBITS : 0;
+			lines[i].args[3] = (lines[i].sidenum[1] != 0xffff) ? sides[lines[i].sidenum[1]].textureoffset >> FRACBITS : 0;
 			lines[i].args[4] = !!(lines[i].flags & ML_NOSKEW);
 			break;
 		case 459: //Control text prompt