diff --git a/sapi/apache2filter/README b/sapi/apache2filter/README
index 0d4e74b259f..f2b0a0097d5 100644
--- a/sapi/apache2filter/README
+++ b/sapi/apache2filter/README
@@ -1,6 +1,6 @@
 WHAT IS THIS?
 
-    It is an output filter for Apache 2.0.
+    This module exploits the layered I/O support in Apache 2.0.
 
 HOW DOES IT WORK?
     
diff --git a/sapi/apache2filter/sapi_apache2.c b/sapi/apache2filter/sapi_apache2.c
index 1a7a09413d9..b915f06e9af 100644
--- a/sapi/apache2filter/sapi_apache2.c
+++ b/sapi/apache2filter/sapi_apache2.c
@@ -54,7 +54,7 @@ php_apache_sapi_ub_write(const char *str, uint str_length)
 
 	ctx = SG(server_context);
 
-	if (!str_length) return 0;
+	if (str_length == 0) return 0;
 	
 	bb = apr_brigade_create(ctx->f->r->pool);
 	while (str_length > 0) {