diff --git a/Lib/email/_compat21.py b/Lib/email/_compat21.py
index 932de48..478d276 100644
--- a/Lib/email/_compat21.py
+++ b/Lib/email/_compat21.py
@@ -25,9 +25,9 @@
 
 
 # Used internally by the Header class
-def _intdiv2(i):
-    """Do an integer divide by 2."""
-    return i / 2
+def _floordiv(x, y):
+    """Do integer division."""
+    return x / y
 
 
 
diff --git a/Lib/email/_compat22.py b/Lib/email/_compat22.py
index d505c96..c88007c 100644
--- a/Lib/email/_compat22.py
+++ b/Lib/email/_compat22.py
@@ -26,9 +26,9 @@
 
 
 # Used internally by the Header class
-def _intdiv2(i):
-    """Do an integer divide by 2."""
-    return i // 2
+def _floordiv(x, y):
+    """Do integer division."""
+    return x // y