diff --git a/README.md b/README.md
index 100f072..be39ca7 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,8 @@ PyInstaller is used to build Windows executables and binaries for Linux/macOS.
 
 The use of CustomTkinter dictates that some extra options need to be defined to ensure non-Python files are included in the binary, otherwise they will not execute correctly.
 
+**NOTE** when building on Linux, you must use a flavour of Linux with fontconfig version 2.13.1 or later, otherwise users of newer Linux flavours will receive warnings or exceptions relating to the "description" element in the configuration.
+
 ### Build script
 
 A build script "build_app.py" has been written to make the build process simpler, and relies on a virtual environment being setup in a directory called "venv" within the EX-Installer repository directory.
@@ -93,7 +95,7 @@ The script will refer to the "version.py" file mentioned above, so this needs to
 To run the script, you need to pass the EX-Installer repository directory and the platform being built for:
 
 ```shell
-python build_app.py -D <Directory path> -P <Win32|Win64|Linux32|Linux64|macOS>
+python build_app.py -D <Directory path> -P <Win32|Win64|Linux64|macOS>
 ```
 
 ### Building manually
@@ -108,7 +110,6 @@ These directories are referenced in the commands below:
   - Win64 - Windows 64 bit
   - Win32 - Windows 32 bit
   - Linux64 - Linux 64 bit
-  - Linux32 - Linux 32 bit
   - macOS - macOS (64 bit only)
 
 The build commands should be executed in a command prompt or terminal window in the directory containing the cloned repository.
diff --git a/build_app.py b/build_app.py
index 93ec56b..625811f 100644
--- a/build_app.py
+++ b/build_app.py
@@ -37,8 +37,8 @@
 # Create the argument parser and add the various required arguments
 parser = argparse.ArgumentParser()
 
-parser.add_argument("-P", "--platform", help="Platform type: Win32|Win64|Linux32|Linux64|macOS",
-                    choices=["Win32", "Win64", "Linux32", "Linux64", "macOS"], required=True,
+parser.add_argument("-P", "--platform", help="Platform type: Win32|Win64|Linux64|macOS",
+                    choices=["Win32", "Win64", "Linux64", "macOS"], required=True,
                     dest="platform")
 parser.add_argument("-D", "--directory", help="Directory containing the cloned repository and virtual environment",
                     required=True,