diff --git a/nixos/modules/services/web-servers/apache-httpd/default.nix b/nixos/modules/services/web-servers/apache-httpd/default.nix
index e94af76661d..6836746f829 100644
--- a/nixos/modules/services/web-servers/apache-httpd/default.nix
+++ b/nixos/modules/services/web-servers/apache-httpd/default.nix
@@ -584,8 +584,8 @@ in
   config = mkIf config.services.httpd.enable {
   
     assertions = [ { assertion = mainCfg.enableSSL == true
-                               -> mainCfg.sslServerCert != null && mainCfg.sslServerCert != ""
-                                    && mainCfg.sslServerKey != null && mainCfg.sslServerKey != "";
+                               -> mainCfg.sslServerCert != null
+                                    && mainCfg.sslServerKey != null;
                      message = "SSL is enabled for HTTPD, but sslServerCert and/or sslServerKey haven't been specified."; }
                  ];