diff --git a/Source/NSURLSession.m b/Source/NSURLSession.m
index 411933599..6579086a1 100644
--- a/Source/NSURLSession.m
+++ b/Source/NSURLSession.m
@@ -1245,14 +1245,7 @@ static NSURLSessionConfiguration	*def = nil;
 
 - (void) setHTTPMaximumConnectionLifetime: (NSInteger)n
 {
-#if     HAVE_DECL_CURLOPT_MAXAGE_CONN
   _HTTPMaximumConnectionLifetime = n;
-#else
-  [NSException raise: NSInternalInconsistencyException
-    format: @"-[%@ %@] not supported by the version of Curl"
-    @" this library was built with",
-    NSStringFromClass([self class]), NSStringFromSelector(_cmd)];
-#endif
 }
 
 - (BOOL) HTTPShouldUsePipelining