diff --git a/Code/Network/RKHTTPRequestOperation.m b/Code/Network/RKHTTPRequestOperation.m
index 5f01b645..386e85ca 100644
--- a/Code/Network/RKHTTPRequestOperation.m
+++ b/Code/Network/RKHTTPRequestOperation.m
@@ -194,7 +194,7 @@ static void *RKHTTPRequestOperationStartDate = &RKHTTPRequestOperationStartDate;
 @end
 
 @interface RKHTTPRequestOperation ()
-@property (readwrite, nonatomic, strong) NSError *HTTPError;
+@property (readwrite, nonatomic, strong) NSError *rkHTTPError;
 @end
 
 @implementation RKHTTPRequestOperation
@@ -234,7 +234,7 @@ static void *RKHTTPRequestOperationStartDate = &RKHTTPRequestOperationStartDate;
 {
     [self.lock lock];
 
-    if (!self.HTTPError && self.response) {
+    if (!self.rkHTTPError && self.response) {
         if (![self hasAcceptableStatusCode] || ![self hasAcceptableContentType]) {
             NSMutableDictionary *userInfo = [NSMutableDictionary dictionary];
             [userInfo setValue:self.responseString forKey:NSLocalizedRecoverySuggestionErrorKey];
@@ -245,16 +245,16 @@ static void *RKHTTPRequestOperationStartDate = &RKHTTPRequestOperationStartDate;
             if (![self hasAcceptableStatusCode]) {
                 NSUInteger statusCode = ([self.response isKindOfClass:[NSHTTPURLResponse class]]) ? (NSUInteger)[self.response statusCode] : 200;
                 [userInfo setValue:[NSString stringWithFormat:NSLocalizedString(@"Expected status code in (%@), got %d", nil), RKStringFromIndexSet(self.acceptableStatusCodes ?: [NSMutableIndexSet indexSet]), statusCode] forKey:NSLocalizedDescriptionKey];
-                self.HTTPError = [[NSError alloc] initWithDomain:RKErrorDomain code:NSURLErrorBadServerResponse userInfo:userInfo];
+                self.rkHTTPError = [[NSError alloc] initWithDomain:RKErrorDomain code:NSURLErrorBadServerResponse userInfo:userInfo];
             } else if (![self hasAcceptableContentType] && self.response.statusCode != 204) {
                 // NOTE: 204 responses come back as text/plain, which we don't want
                 [userInfo setValue:[NSString stringWithFormat:NSLocalizedString(@"Expected content type %@, got %@", nil), self.acceptableContentTypes, [self.response MIMEType]] forKey:NSLocalizedDescriptionKey];
-                self.HTTPError = [[NSError alloc] initWithDomain:RKErrorDomain code:NSURLErrorCannotDecodeContentData userInfo:userInfo];
+                self.rkHTTPError = [[NSError alloc] initWithDomain:RKErrorDomain code:NSURLErrorCannotDecodeContentData userInfo:userInfo];
             }
         }
     }
     
-    NSError *error = self.HTTPError ?: [super error];
+    NSError *error = self.rkHTTPError ?: [super error];
     [self.lock unlock];
     return error;
 }