diff --git a/README.md b/README.md
index cd4a1164..a30f3395 100644
--- a/README.md
+++ b/README.md
@@ -149,6 +149,7 @@ The segments that are currently available are:
 * [`todo`](http://todotxt.com/) - Shows the number of tasks in your todo.txt tasks file.
 * `detect_virt` - Virtualization detection with systemd
 * `newline` - Continues the prompt on a new line.
+* `openfoam` - Shows the currently sourced [OpenFOAM](https://openfoam.org/) environment.
 
 ---------------------------------------------------------------------------------
 
diff --git a/powerlevel9k.zsh-theme b/powerlevel9k.zsh-theme
index 07c504fe..831e81c5 100755
--- a/powerlevel9k.zsh-theme
+++ b/powerlevel9k.zsh-theme
@@ -1394,6 +1394,16 @@ prompt_pyenv() {
   fi
 }
 
+prompt_openfoam() {
+  local wm_project_version="$WM_PROJECT_VERSION"
+  local wm_fork="$WM_FORK"
+  if [[ -n "$wm_project_version" ]] &&  [[ -z "$wm_fork" ]] ; then
+	  "$1_prompt_segment" "$0" "$2" "yellow" "$DEFAULT_COLOR" "OF: $(basename "$wm_project_version")"
+	elif [[ -n "$wm_project_version" ]] && [[ -n "$wm_fork" ]] ; then
+	  "$1_prompt_segment" "$0" "$2" "yellow" "$DEFAULT_COLOR" "F-X: $(basename "$wm_project_version")"
+	fi
+}
+
 # Swift version
 prompt_swift_version() {
   # Get the first number as this is probably the "main" version number..