diff --git a/lib/mpl_toolkits/mplot3d/axes3d.py b/lib/mpl_toolkits/mplot3d/axes3d.py
index 45bbb001fc8b..f6ae8a8ff6ce 100644
--- a/lib/mpl_toolkits/mplot3d/axes3d.py
+++ b/lib/mpl_toolkits/mplot3d/axes3d.py
@@ -1168,7 +1168,8 @@ def format_coord(self, xd, yd):
             return ''
 
         if self.button_pressed in self._rotate_btn:
-            return 'azimuth=%d deg, elevation=%d deg ' % (self.azim, self.elev)
+            return 'azimuth={:.0f} deg, elevation={:.0f} deg '.format(
+                self.azim, self.elev)
             # ignore xd and yd and display angles instead
 
         # nearest edge