diff --git a/Units/Synapse/ssl_openssl_lib.pas b/Units/Synapse/ssl_openssl_lib.pas
index fa85f70..23234de 100644
--- a/Units/Synapse/ssl_openssl_lib.pas
+++ b/Units/Synapse/ssl_openssl_lib.pas
@@ -85,7 +85,7 @@ uses
   Classes,
   synafpc,
 {$IFNDEF MSWINDOWS}
-  Libc, SysUtils;
+  SysUtils;
 {$ELSE}
   Windows;
 {$ENDIF}