diff --git a/lib/mpl_toolkits/mplot3d/axes3d.py b/lib/mpl_toolkits/mplot3d/axes3d.py
index 0a8103287110..c72ebde234e9 100644
--- a/lib/mpl_toolkits/mplot3d/axes3d.py
+++ b/lib/mpl_toolkits/mplot3d/axes3d.py
@@ -1169,7 +1169,8 @@ 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