diff --git a/ext/libxml/config.w32 b/ext/libxml/config.w32
index bfac5c839a3..5ba19a3e7bc 100644
--- a/ext/libxml/config.w32
+++ b/ext/libxml/config.w32
@@ -15,6 +15,9 @@ if (PHP_LIBXML == "yes") {
 			ADD_DEF_FILE("ext\\libxml\\php_libxml2.def");
 		}
 		ADD_EXTENSION_DEP('libxml', 'iconv');
+	} else {
+		WARNING("libxml support can't be enabled, iconv or libxml are missing")
+		PHP_LIBXML = "no"
 	}
 }