diff --git a/KissXML/DDXMLDocument.m b/KissXML/DDXMLDocument.m
index a8b3458b..b1206e21 100644
--- a/KissXML/DDXMLDocument.m
+++ b/KissXML/DDXMLDocument.m
@@ -77,7 +77,7 @@ - (id)initWithXMLString:(NSString *)string options:(NSUInteger)mask error:(NSErr
 **/
 - (id)initWithData:(NSData *)data options:(NSUInteger)mask error:(NSError **)error
 {
-	if (data == nil || [data length] == 0)
+	if (data == nil || [data length] == 0 || [data length] > INT_MAX)
 	{
 		if (error) *error = [NSError errorWithDomain:@"DDXMLErrorDomain" code:0 userInfo:nil];
 		
@@ -91,7 +91,7 @@ - (id)initWithData:(NSData *)data options:(NSUInteger)mask error:(NSError **)err
 	// Therefore, we call it again here just to be safe.
 	xmlKeepBlanksDefault(0);
 	
-	xmlDocPtr doc = xmlParseMemory([data bytes], [data length]);
+	xmlDocPtr doc = xmlParseMemory([data bytes], (int)[data length]);
 	if (doc == NULL)
 	{
 		if (error) *error = [NSError errorWithDomain:@"DDXMLErrorDomain" code:1 userInfo:nil];
diff --git a/KissXML/DDXMLElement.m b/KissXML/DDXMLElement.m
index 012299fe..c91a5bb8 100644
--- a/KissXML/DDXMLElement.m
+++ b/KissXML/DDXMLElement.m
@@ -247,12 +247,12 @@ - (NSArray *)elementsForLocalName:(NSString *)localName URI:(NSString *)uri
 	}
 	else
 	{
-		NSString *prefix;
+		NSString *anotherPrefix;
 		NSString *realLocalName;
 		
-		[DDXMLNode getPrefix:&prefix localName:&realLocalName forName:localName];
+		[DDXMLNode getPrefix:&anotherPrefix localName:&realLocalName forName:localName];
 		
-		return [self _elementsForName:localName localName:realLocalName prefix:prefix uri:uri];
+		return [self _elementsForName:localName localName:realLocalName prefix:anotherPrefix uri:uri];
 	}
 }