diff --git a/Documentation/git-sparse-checkout.txt b/Documentation/git-sparse-checkout.txt
index 3b341cf0fc..974ade2238 100644
--- a/Documentation/git-sparse-checkout.txt
+++ b/Documentation/git-sparse-checkout.txt
@@ -5,7 +5,7 @@ NAME
 ----
 git-sparse-checkout - Initialize and modify the sparse-checkout
 configuration, which reduces the checkout to a set of paths
-given by a list of atterns.
+given by a list of patterns.
 
 
 SYNOPSIS
diff --git a/cache.h b/cache.h
index 1554488d66..cbfaead23a 100644
--- a/cache.h
+++ b/cache.h
@@ -958,8 +958,8 @@ extern int protect_hfs;
 extern int protect_ntfs;
 extern const char *core_fsmonitor;
 
-int core_apply_sparse_checkout;
-int core_sparse_checkout_cone;
+extern int core_apply_sparse_checkout;
+extern int core_sparse_checkout_cone;
 
 /*
  * Include broken refs in all ref iterations, which will