diff --git a/debug_toolbar/panels/sql/panel.py b/debug_toolbar/panels/sql/panel.py
index 275ec9692..afc2d2785 100644
--- a/debug_toolbar/panels/sql/panel.py
+++ b/debug_toolbar/panels/sql/panel.py
@@ -148,7 +148,7 @@ def generate_stats(self, request, response):
             for n, db in enumerate(self._databases.values()):
                 rgb = [0, 0, 0]
                 color = n % 3
-                rgb[color] = 256 - n / 3 * factor
+                rgb[color] = 256 - n // 3 * factor
                 nn = color
                 # XXX: pretty sure this is horrible after so many aliases
                 while rgb[color] < factor: