diff --git a/Source/NSNumberFormatter.m b/Source/NSNumberFormatter.m
index 2c2bad38d..87faac4d3 100644
--- a/Source/NSNumberFormatter.m
+++ b/Source/NSNumberFormatter.m
@@ -617,7 +617,7 @@ static NSUInteger _defaultBehavior = 0;
 #endif
     {
 #if GS_USE_ICU == 1
-      return [self _setSymbol: newSeparator : UNUM_DECIMAL_SEPARATOR_SYMBOL];
+      [self _setSymbol: newSeparator : UNUM_DECIMAL_SEPARATOR_SYMBOL];
 #endif
     }
   else if (_behavior == NSNumberFormatterBehavior10_0