diff --git a/README.md b/README.md
index 56e8455..5dcac54 100644
--- a/README.md
+++ b/README.md
@@ -53,3 +53,10 @@ Getting `MemoryErrors` ?
 Try with the `--no-cache-dir` option.
 
 `pip install scipy --no-cache-dir`
+
+### Fix permissions problems with the cache
+
+```
+sudo setfacl  -R -m u:apache:rwx -m u:`whoami`:rwx cache
+sudo setfacl -dR -m u:apache:rwx -m u:`whoami`:rwx cache
+```
\ No newline at end of file
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libgit2 0.21.2