diff --git a/tests/gem_tiled_swapping.c b/tests/gem_tiled_swapping.c
index 2361dfcf..072bf9a5 100644
--- a/tests/gem_tiled_swapping.c
+++ b/tests/gem_tiled_swapping.c
@@ -169,7 +169,7 @@ static void check_memory_layout(void)
 	igt_assert(tiling_debugfs_file);
 
 	while (getline(&line, &sz, tiling_debugfs_file) > 0) {
-		if (strstr(line, "L-shaped") != 0)
+		if (strstr(line, "L-shaped") == NULL)
 			continue;
 
 		igt_skip("L-shaped memory configuration detected\n");