diff --git a/macos/defaults.sh b/macos/defaults.sh
index f75e50a..8d197aa 100644
--- a/macos/defaults.sh
+++ b/macos/defaults.sh
@@ -11,3 +11,6 @@ defaults write com.apple.systemsound "com.apple.sound.uiaudio.enabled" -int 0
 
 # Remove the default shadow from screenshots.
 defaults write com.apple.screencapture "disable-shadow" -bool "true"
+
+# Save screenshots in PNG format (other options: BMP, GIF, JPG, PDF, TIFF)
+defaults write com.apple.screencapture type -string "png"