diff --git a/docs/ProgrammersManual.html b/docs/ProgrammersManual.html
index 4e97bc0..4af6439 100644
--- a/docs/ProgrammersManual.html
+++ b/docs/ProgrammersManual.html
@@ -3543,7 +3543,7 @@
 <a href="#Value"><tt>Value</tt></a></p>
 
 <p>The <tt>Function</tt> class represents a single procedure in LLVM.  It is
-actually one of the more complex classes in the LLVM heirarchy because it must
+actually one of the more complex classes in the LLVM hierarchy because it must
 keep track of a large amount of data.  The <tt>Function</tt> class keeps track
 of a list of <a href="#BasicBlock"><tt>BasicBlock</tt></a>s, a list of formal 
 <a href="#Argument"><tt>Argument</tt></a>s, and a 
diff --git a/docs/WritingAnLLVMPass.html b/docs/WritingAnLLVMPass.html
index f715a96..c9a7edb 100644
--- a/docs/WritingAnLLVMPass.html
+++ b/docs/WritingAnLLVMPass.html
@@ -179,7 +179,7 @@
 <div class="doc_code"><pre>
 # Makefile for hello pass
 
-# Path to top level of LLVM heirarchy
+# Path to top level of LLVM hierarchy
 LEVEL = ../../..
 
 # Name of the library to build