diff --git a/codec-http/src/main/java/io/netty/handler/codec/spdy/SpdyFrameCodec.java b/codec-http/src/main/java/io/netty/handler/codec/spdy/SpdyFrameCodec.java
index c3696982a8..002d1e02aa 100644
--- a/codec-http/src/main/java/io/netty/handler/codec/spdy/SpdyFrameCodec.java
+++ b/codec-http/src/main/java/io/netty/handler/codec/spdy/SpdyFrameCodec.java
@@ -288,6 +288,8 @@ public class SpdyFrameCodec extends ByteToMessageDecoder implements SpdyFrameDec
             spdyHeaderBlockDecoder.decode(headerBlock, spdyHeadersFrame);
         } catch (Exception e) {
             ctx.fireExceptionCaught(e);
+        } finally {
+            headerBlock.release();
         }
     }