diff --git a/README.md b/README.md
index 3d3029c..f09a14e 100644
--- a/README.md
+++ b/README.md
@@ -126,7 +126,7 @@ DirectMap2M:     8187904 kB
 ['SwapCached:            0 kB\n', 'SwapTotal:      16776188 kB\n', 'SwapFree:       16776188 kB\n']
 ```
 
-- Get memory usage as int (is case insensitive):
+- Get memory usage as int (is case sensitive):
 
 ```
 >>> mem.get('Inactive(anon)')