diff --git a/functions/fisher_uninstall.fish b/functions/fisher_uninstall.fish
index 7acc52d..a449289 100644
--- a/functions/fisher_uninstall.fish
+++ b/functions/fisher_uninstall.fish
@@ -111,7 +111,7 @@ function fisher_uninstall -d "Disable / Uninstall Plugins"
             continue
         end
 
-        set -l tmp (mktemp)
+        set -l tmp (mktemp -t fisher.XXXXXXXX)
 
         if not sed -E '/^ *'(printf "%s|%s" $name $url | sed 's|/|\\\/|g'
         )'([ #].*)*$/d' < $file > $tmp
diff --git a/functions/wait.fish b/functions/wait.fish
index b8b5099..e2f8d4f 100644
--- a/functions/wait.fish
+++ b/functions/wait.fish
@@ -90,7 +90,7 @@ function wait -d "Run commands and wait with a spin"
             end
     end
 
-    set -l tmp (mktemp)
+    set -l tmp (mktemp -t fisher.XXXXXXXX)
 
     fish -c "$commands" ^ $tmp &