diff --git a/flang/docs/CMakeLists.txt b/flang/docs/CMakeLists.txt
--- a/flang/docs/CMakeLists.txt
+++ b/flang/docs/CMakeLists.txt
@@ -109,13 +109,12 @@
         COMMAND "${CMAKE_COMMAND}" -E copy_directory
         "${CMAKE_CURRENT_SOURCE_DIR}"
         "${CMAKE_CURRENT_BINARY_DIR}/Source")
-
-      # Copies FIRLangRef into the same directory as the
-      # other .md files, so sphinx can use them
-      add_custom_command(TARGET docs-flang-html POST_BUILD
-        COMMAND "${CMAKE_COMMAND}" -E copy
-        "${CMAKE_CURRENT_BINARY_DIR}/Dialect/FIRLangRef.md"
-        "${CMAKE_CURRENT_BINARY_DIR}/Source/FIRLangRef.md")
+        
+        # Runs a python script prior to HTML generation to prepend a header to FIRLangRef,
+        # Without the header, the page is incorrectly formatted, as it assumes the first entry is the page title.
+        add_custom_command(TARGET copy-flang-src-docs
+        COMMAND "${Python3_EXECUTABLE}"
+          ARGS ${CMAKE_CURRENT_BINARY_DIR}/Source/FIR/CreateFIRLangRef.py)
 
     endif()
     if (${SPHINX_OUTPUT_MAN})
diff --git a/flang/docs/FIR/CreateFIRLangRef.py b/flang/docs/FIR/CreateFIRLangRef.py
new file mode 100644
--- /dev/null
+++ b/flang/docs/FIR/CreateFIRLangRef.py
@@ -0,0 +1,17 @@
+header = open('Source/FIR/FIRLangRef_Header.md', 'r')
+docs = open('Dialect/FIRLangRef.md', 'r')
+
+output = open('Source/FIRLangRef.md', 'w')
+
+# 1. Writes line 1 from docs to output, (comment line that the file is autogenerated)
+# 2. Adds a new line
+# 3. Writes the entire header to the output file
+# 4. Writes the remainder of docs to the output file
+output.write(docs.readline())
+output.write("\n")
+output.write(header.read())
+output.write(docs.read())
+
+header.close()
+docs.close()
+output.close()
\ No newline at end of file
diff --git a/flang/docs/FIR/FIRLangRef_Header.md b/flang/docs/FIR/FIRLangRef_Header.md
new file mode 100644
--- /dev/null
+++ b/flang/docs/FIR/FIRLangRef_Header.md
@@ -0,0 +1,3 @@
+# FIR Language Reference
+
+This page contains an overview of the Fortran IR operations, their syntax, and example usages.
diff --git a/flang/docs/_templates/indexsidebar.html b/flang/docs/_templates/indexsidebar.html
--- a/flang/docs/_templates/indexsidebar.html
+++ b/flang/docs/_templates/indexsidebar.html
@@ -5,7 +5,6 @@
 
 <ul class="want-points">
     <li><a href="https://github.com/llvm/llvm-project/blob/main/flang/README.md#getting-started">Getting Started</a></li>
-    <li><a class="reference internal" href="FIRLangRef.html">Fortran IR Language Reference</a></li>
 </ul>
 
 <h3>Getting Involved</h3>
diff --git a/flang/docs/index.md b/flang/docs/index.md
--- a/flang/docs/index.md
+++ b/flang/docs/index.md
@@ -44,6 +44,7 @@
    Directives
    DoConcurrent
    Extensions
+   FIRLangRef
    FlangDriver
    FortranIR
    FortranLLVMTestSuite