diff --git a/gui/public/electron.js b/gui/public/electron.js
index d609e24..5ad53ac 100644
--- a/gui/public/electron.js
+++ b/gui/public/electron.js
@@ -480,5 +480,6 @@ ipc.on('exportEffects', (event, data) => {
 
 ipc.on('saveConfig', (event, data) => {
   let ret = saveDataSync(CONFIG_FILE_NAME, data)
+  config = Object.assign({}, data)
   event.returnValue = ret
 })
diff --git a/gui/src/components/output/jpeg.js b/gui/src/components/output/jpeg.js
index 4762faa..94801dd 100644
--- a/gui/src/components/output/jpeg.js
+++ b/gui/src/components/output/jpeg.js
@@ -20,7 +20,7 @@ function JPEG({ configRef }) {
         <FormattedMessage id={"setting.output.jpeg.quality"} />
       </Typography>
       <Slider
-        defaultValue={75}
+        defaultValue={outputRef.current.quality}
         getAriaValueText={(value) => { return value }}
         aria-labelledby={"quality-slider"}
         valueLabelDisplay="auto"
diff --git a/gui/src/components/output/png.js b/gui/src/components/output/png.js
index ce7b97e..4902132 100644
--- a/gui/src/components/output/png.js
+++ b/gui/src/components/output/png.js
@@ -22,7 +22,7 @@ function PNG({ configRef }) {
         <FormattedMessage id={"setting.output.png.compress_level"} />
       </Typography>
       <Slider
-        defaultValue={75}
+        defaultValue={outputRef.current.compress_level}
         getAriaValueText={(value) => { return value }}
         aria-labelledby={"compress_level-slider"}
         valueLabelDisplay="auto"