diff --git a/tools/perf/util/xyarray.h b/tools/perf/util/xyarray.h
index 4ba726c908707..54af604621304 100644
--- a/tools/perf/util/xyarray.h
+++ b/tools/perf/util/xyarray.h
@@ -23,12 +23,12 @@ static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
 
 static inline int xyarray__max_y(struct xyarray *xy)
 {
-	return xy->max_x;
+	return xy->max_y;
 }
 
 static inline int xyarray__max_x(struct xyarray *xy)
 {
-	return xy->max_y;
+	return xy->max_x;
 }
 
 #endif /* _PERF_XYARRAY_H_ */