diff --git a/src/shell/scripts/omp.lua b/src/shell/scripts/omp.lua
index 5ea46270..7dea9eb4 100644
--- a/src/shell/scripts/omp.lua
+++ b/src/shell/scripts/omp.lua
@@ -6,6 +6,18 @@ if '::UPGRADE::' == 'true' then
     print(notice)
 end
 
+-- Cache PID
+
+function generateCustomUUID()
+    local template = 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx'
+    return string.gsub(template, '[x]', function(c)
+        local v = math.random(0, 0xf)
+        return string.format('%x', v)
+    end)
+end
+
+os.setenv("POSH_PID", generateCustomUUID())
+
 -- Helper functions
 
 local function get_priority_number(name, default)
@@ -25,11 +37,11 @@ local function get_priority_number(name, default)
         return default
 	end
 end
-
+os.setenv("POSH_CURSOR_LINE", console.getnumlines())
 -- Environment variables
 
 local function environment_onbeginedit()
-    os.setenv("POSH_CURSOR_LINE", console.getnumlines())
+
 end
 
 -- Local state