diff --git a/Firebase/Database/Public/FIRServerValue.h b/Firebase/Database/Public/FIRServerValue.h
index 8a169c767b1..e03e291d5c6 100644
--- a/Firebase/Database/Public/FIRServerValue.h
+++ b/Firebase/Database/Public/FIRServerValue.h
@@ -40,7 +40,7 @@ NS_SWIFT_NAME(ServerValue)
  * set the data to the delta value. If either of the delta value or the existing
  * data are doubles, both values will be interpreted as doubles. Double
  * arithmetic and representation of double values follow IEEE 754 semantics. If
- * there is positive/negative integer overflow, the sum is calculated as a  a
+ * there is positive/negative integer overflow, the sum is calculated as a
  * double.
  *
  * @param delta the amount to modify the current value atomically.