diff --git a/README.md b/README.md
index 223258d..3df9f35 100644
--- a/README.md
+++ b/README.md
@@ -293,7 +293,7 @@ slabs containing them:
 > each doubling in size, which limits internal fragmentation to approximately 20% for all but the
 > smallest size classes
 
-| size class | worst case internal fragmentation | slab slots | slab size | worst case internal fragmentation for slabs |
+| size class | worst case internal fragmentation | slab slots | slab size | internal fragmentation for slabs |
 | - | - | - | - | - |
 | 16 | 93.75% | 256 | 4096 | 0.0% |
 | 32 | 46.875% | 128 | 4096 | 0.0% |
diff --git a/calculate_waste.py b/calculate_waste.py
index 552c5b1..07dda15 100755
--- a/calculate_waste.py
+++ b/calculate_waste.py
@@ -36,7 +36,7 @@ def page_align(size):
     return (size + 4095) & ~4095
 
 print("| ", end="")
-print("size class", "worst case internal fragmentation", "slab slots", "slab size", "worst case internal fragmentation for slabs", sep=" | ", end=" |\n")
+print("size class", "worst case internal fragmentation", "slab slots", "slab size", "internal fragmentation for slabs", sep=" | ", end=" |\n")
 print("| ", end='')
 print("-", "-", "-", "-", "-", sep=" | ", end=" |\n")
 for size, slots, fragmentation in zip(size_classes, size_class_slots, fragmentation):