diff --git a/src/cache/cache.go b/src/cache/cache.go
index 7990375b..9eaf5c9c 100644
--- a/src/cache/cache.go
+++ b/src/cache/cache.go
@@ -5,6 +5,8 @@ import (
 	"os"
 	"strconv"
 	"time"
+
+	"github.com/jandedobbeleer/oh-my-posh/src/log"
 )
 
 type Cache interface {
@@ -30,8 +32,10 @@ var SessionFileName = fmt.Sprintf("%s.%s", FileName, pid())
 func pid() string {
 	pid := os.Getenv("POSH_PID")
 	if len(pid) == 0 {
+		log.Debug("POSH_PID not set, using process pid")
 		pid = strconv.Itoa(os.Getppid())
 	}
+
 	return pid
 }
 
diff --git a/src/shell/scripts/omp.fish b/src/shell/scripts/omp.fish
index 27fdcb53..c7745414 100644
--- a/src/shell/scripts/omp.fish
+++ b/src/shell/scripts/omp.fish
@@ -1,8 +1,8 @@
-set --export POSH_THEME ::CONFIG::
-set --export POSH_SHELL_VERSION $FISH_VERSION
-set --global POWERLINE_COMMAND oh-my-posh
-set --global POSH_PID $fish_pid
-set --global CONDA_PROMPT_MODIFIER false
+set --global --export POSH_THEME ::CONFIG::
+set --global --export POSH_SHELL_VERSION $FISH_VERSION
+set --global --export POWERLINE_COMMAND oh-my-posh
+set --global --export POSH_PID $fish_pid
+set --global --export CONDA_PROMPT_MODIFIER false
 set --global _omp_tooltip_command ''
 set --global _omp_current_rprompt ''
 set --global _omp_transient false