diff --git a/.zshc/func.zsh b/.zshc/func.zsh
index aa87095..d816588 100644
--- a/.zshc/func.zsh
+++ b/.zshc/func.zsh
@@ -33,10 +33,9 @@ function clip {
 function zipline {
   # see spectacle-screenshot and flameshot-screenshot for example usage
 
-  readonly file=${1:?Please provide the path to the file you want to upload.}
+  readonly file_path=${1:?Please provide the path to the file you want to upload.}
   readonly name=${2}
-  readonly desktopentry=${3}
-  readonly contenttype=${4}
+  readonly desktop_entry=${3}
   readonly token=${ZIPLINE_TOKEN:?Environment variable ZIPLINE_TOKEN is not set. Please set it to your Zipline API token. I recommend placing it in a file at ~/.config/environment.d/zipline.conf}
   readonly url=${ZIPLINE_URL:?Environment variable ZIPLINE_URL is not set. Please set it to the URL of your Zipline instance. I recommend placing it in a file at ~/.config/environment.d/zipline.conf}
 
@@ -53,13 +52,13 @@ function zipline {
     return 127
   fi
 
-  if [[ ! -f "${file}" ]]; then
-    echo "File does not exist."
+  if [[ ! -f "${file_path}" ]]; then
+    echo "File at $file_path does not exist."
     return 66
   fi
 
-  if [[ -n "${name}" && -n "${desktopentry}" ]]; then
-    if ! does-desktop-entry-exist "$desktopentry"; then
+  if [[ -n "${name}" && -n "${desktop_entry}" ]]; then
+    if ! does-desktop-entry-exist "$desktop_entry"; then
       echo "Desktop entry does not exist."
       return 66
     fi
@@ -72,24 +71,20 @@ function zipline {
     readonly use_send_notify=false
   fi
 
-  if [[ -z "${contenttype}" ]]; then
-    readonly content_type="multipart/form-data"
-  else
-    readonly content_type=$contenttype
-  fi
+  readonly content_type=$(command file -b --mime-type "${file_path}")
 
-  if curl -sS -fH "authorization: $token" "${url%/}/api/upload" -F"file=@$file;type=$content_type" >"$temp_file" 2>&1; then
+  if curl -sS -fH "authorization: $token" "${url%/}/api/upload" -F"file=@$file_path;type=$content_type" >"$temp_file" 2>&1; then
     readonly link=$(jq -r '.files[0]' <"$temp_file" | tr -d '\n')
     echo -n "$link" | clip
     echo "Upload successful. Link copied to clipboard: $link"
     if $use_send_notify; then
-      notify-send -a "$name" -u low -c "transfer.complete" -i "$file" -h "string:desktop-entry:$desktopentry" "Upload Successful" "Link copied to clipboard:\n$link"
+      notify-send -a "$name" -u low -c "transfer.complete" -i "$file_path" -h "string:desktop-entry:$desktop_entry" "Upload Successful" "Link copied to clipboard:\n$link"
     fi
     rm -f "$temp_file"
   else
     echo "Upload failed. Error message: $(<"$temp_file")"
     if $use_send_notify; then
-      notify-send -a "$name" -u critical -c "transfer.error" -h "string:desktop-entry:$desktopentry" "Upload Failed" "$(<"$temp_file")"
+      notify-send -a "$name" -u critical -c "transfer.error" -h "string:desktop-entry:$desktop_entry" "Upload Failed" "$(<"$temp_file")"
     fi
     rm -f "$temp_file"
     return 1
@@ -117,12 +112,6 @@ function spectacle-screenshot {
     return 1
   fi
 
-  if $save_recording; then
-    readonly content_type="video/webm"
-  else
-    readonly content_type="image/png"
-  fi
-
   if [[ -z "${2}" ]]; then
     if $save_recording; then
       readonly file=$(mktemp /tmp/spectacle-recording.XXXXXXXX.webm)
@@ -141,7 +130,7 @@ function spectacle-screenshot {
   fi
   [ ! -s "$file" ] && return 1
 
-  zipline "$file" Spectacle org.kde.spectacle.desktop "$content_type"
+  zipline "$file" Spectacle org.kde.spectacle.desktop
   rm -f "$file"
 }
 
@@ -169,7 +158,7 @@ function flameshot-screenshot {
   echo "Screenshot saved to $file"
   [ ! -s "$file" ] && return 1
 
-  zipline "$file" Flameshot org.flameshot.Flameshot.desktop image/png
+  zipline "$file" Flameshot org.flameshot.Flameshot.desktop
   rm -f "$file"
 }