diff --git a/docs/Wiring/wiring_samd21g18a.md b/docs/Wiring/wiring_samd21g18a.md
index 24205d8..34888dc 100644
--- a/docs/Wiring/wiring_samd21g18a.md
+++ b/docs/Wiring/wiring_samd21g18a.md
@@ -1,5 +1,5 @@
 # Heltec E-ink Modules
-## Wiring:SAMD21G18A
+## Wiring: SAMD21G18A
 
 **✅ SAMD21G18A uses 3.3V logic. It can connect directly to display.**