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+---
+title: Add period with double-space | Keyboard
+description: Allows you to type a period by pressing space twice.
+head:
+  - - meta
+    - property: 'og:title'
+      content: macOS defaults > Keyboard > Add period with double-space
+  - - meta
+    - property: 'og:description'
+      content: Allows you to type a period by pressing space twice.
+---
+
+# Add period with double-space
+
+Allows you to type a period by pressing space twice.
+
+<!-- break lists -->
+
+- **Tested on macOS**:
+  - Sonoma
+- **Parameter type**: bool
+
+## Set to `true` (default value)
+
+When on, pressing space twice will insert a period and a space.
+
+```bash
+defaults write NSGlobalDomain NSAutomaticPeriodSubstitutionEnabled -bool true
+```
+
+## Set to `false`
+
+When off, pressing space twice will insert two spaces.
+
+```bash
+defaults write NSGlobalDomain NSAutomaticPeriodSubstitutionEnabled -bool false
+```
+
+## Read current value
+
+```bash
+defaults read NSGlobalDomain NSAutomaticPeriodSubstitutionEnabled
+```
+
+## Reset to default value
+
+```bash
+defaults delete NSGlobalDomain NSAutomaticPeriodSubstitutionEnabled
+```