diff --git a/llvm/docs/UsingLibraries.html b/llvm/docs/UsingLibraries.html
index 9494db6f08ad..529d7c56dc92 100644
--- a/llvm/docs/UsingLibraries.html
+++ b/llvm/docs/UsingLibraries.html
@@ -70,7 +70,7 @@
   <p>The table below categorizes each library
 <table style="text-align:left">
   <tr><th>Library</th><th>Forms</th><th>Description</th></tr>
-  <tr><th colspan=3">Core Libraries</th></tr>
+  <tr><th colspan="3">Core Libraries</th></tr>
   <tr><td>LLVMAsmParser</td><td><tt>.o</tt></td>
     <td>LLVM Assembly Parsing</td></tr>
   <tr><td>LLVMBCReader</td><td><tt>.o</tt></td>
@@ -86,7 +86,7 @@
   <tr><td>LLVMCore</td><td><tt>.o</tt></td>
     <td>LLVM Core IR</td></tr>
 
-  <tr><th colspan=3">Analysis Libraries</th></tr>
+  <tr><th colspan="3">Analysis Libraries</th></tr>
   <tr><td>LLVMAnalysis</td><td><tt>.a .o</tt></td>
     <td>Various analysis passes.</td></tr>
   <tr><td>LLVMDataStructure</td><td><tt>.a .o</tt></td>
@@ -94,7 +94,7 @@
   <tr><td>LLVMipa</td><td><tt>.a .o</tt></td>
     <td>Inter-procedural analysis passes.</td></tr>
 
-  <tr><th colspan=3">Transformation Libraries</th></tr>
+  <tr><th colspan="3">Transformation Libraries</th></tr>
   <tr><td>LLVMInstrumentation</td><td><tt>.a .o</tt></td>
     <td>Instrumentation passes.</td></tr>
   <tr><td>LLVMipo</td><td><tt>.a .o</tt></td>
@@ -108,11 +108,11 @@
   <tr><td>LLVMProfilePaths</td><td><tt>.o</tt></td>
     <td>Profile paths for instrumentation.</td></tr>
 
-  <tr><th colspan=3">Code Generation Libraries </th></tr>
+  <tr><th colspan="3">Code Generation Libraries </th></tr>
   <tr><td>LLVMCodeGen</td><td><tt>.o</tt></td>
     <td>Native code generation infrastructure</td></tr>
 
-  <tr><th colspan=3">Target Libraries</th></tr>
+  <tr><th colspan="3">Target Libraries</th></tr>
   <tr><td>LLVMCBackend</td><td><tt>.o</tt></td>
     <td>'C' language code generator.</td></tr>
   <tr><td>LLVMPowerPC</td><td><tt>.o</tt></td>
@@ -136,7 +136,7 @@
   <tr><td>LLVMX86</td><td><tt>.o</tt></td>
     <td>Intel x86 code generation backend</td></tr>
 
-  <tr><th colspan=3">Runtime Libraries</th></tr>
+  <tr><th colspan="3">Runtime Libraries</th></tr>
   <tr><td>LLVMInterpreter</td><td><tt>.o</tt></td>
     <td>Bytecode Interpreter</td></tr>
   <tr><td>LLVMJIT</td><td><tt>.o</tt></td>