diff --git a/src/ios/IonicKeyboard.m b/src/ios/IonicKeyboard.m
index 045cc65..ea8f77f 100644
--- a/src/ios/IonicKeyboard.m
+++ b/src/ios/IonicKeyboard.m
@@ -124,8 +124,9 @@ - (void) disableScroll:(CDVInvokedUrlCommand*)command {
       return;
     }
     id value = [command.arguments objectAtIndex:0];
-    
-    self.disableScroll = [value boolValue];
+    if (value != [NSNull null]) {
+      self.disableScroll = [value boolValue];
+    }
 }
 
 - (void) hideKeyboardAccessoryBar:(CDVInvokedUrlCommand*)command {
@@ -133,8 +134,9 @@ - (void) hideKeyboardAccessoryBar:(CDVInvokedUrlCommand*)command {
       return;
     }
     id value = [command.arguments objectAtIndex:0];
-    
-    self.hideKeyboardAccessoryBar = [value boolValue];
+    if (value != [NSNull null]) {
+      self.hideKeyboardAccessoryBar = [value boolValue];
+    }
 }
 
 - (void) close:(CDVInvokedUrlCommand*)command {