diff --git a/src/main/java/org/jboss/netty/handler/codec/rtsp/RtspMessageDecoder.java b/src/main/java/org/jboss/netty/handler/codec/rtsp/RtspMessageDecoder.java
index 5c1cca9ae2..7cd028a86d 100644
--- a/src/main/java/org/jboss/netty/handler/codec/rtsp/RtspMessageDecoder.java
+++ b/src/main/java/org/jboss/netty/handler/codec/rtsp/RtspMessageDecoder.java
@@ -90,4 +90,18 @@ public abstract class RtspMessageDecoder extends HttpMessageDecoder {
             return null;
         }
     }
+
+    @Override
+    protected boolean isContentAlwaysEmpty(HttpMessage msg) {
+        // Unlike HTTP, RTSP always assumes zero-length body if Content-Length
+        // header is absent.
+        boolean empty = super.isContentAlwaysEmpty(msg);
+        if (empty) {
+            return true;
+        }
+        if (!msg.containsHeader(RtspHeaders.Names.CONTENT_LENGTH)) {
+            return true;
+        }
+        return empty;
+    }
 }
diff --git a/src/main/java/org/jboss/netty/handler/codec/rtsp/RtspResponseDecoder.java b/src/main/java/org/jboss/netty/handler/codec/rtsp/RtspResponseDecoder.java
index 28086711f8..7f7dd15016 100644
--- a/src/main/java/org/jboss/netty/handler/codec/rtsp/RtspResponseDecoder.java
+++ b/src/main/java/org/jboss/netty/handler/codec/rtsp/RtspResponseDecoder.java
@@ -80,20 +80,6 @@ public class RtspResponseDecoder extends RtspMessageDecoder {
                 new HttpResponseStatus(Integer.valueOf(initialLine[1]), initialLine[2]));
     }
 
-    @Override
-    protected boolean isContentAlwaysEmpty(HttpMessage msg) {
-        // Unlike HTTP, RTSP always assumes zero-length body if Content-Length
-        // header is absent.
-        boolean empty = super.isContentAlwaysEmpty(msg);
-        if (empty) {
-            return true;
-        }
-        if (!msg.containsHeader(RtspHeaders.Names.CONTENT_LENGTH)) {
-            return true;
-        }
-        return empty;
-    }
-
     @Override
     protected boolean isDecodingRequest() {
         return false;