diff --git a/include/proto/compression.h b/include/proto/compression.h
index cfab62a..1614edd 100644
--- a/include/proto/compression.h
+++ b/include/proto/compression.h
@@ -33,22 +33,21 @@
 int http_compression_buffer_add_data(struct session *s, struct buffer *in, struct buffer *out);
 int http_compression_buffer_end(struct session *s, struct buffer **in, struct buffer **out, int end);
 
-int identity_init(struct comp_ctx *comp_ctx, int level);
+int identity_init(struct comp_ctx **comp_ctx, int level);
 int identity_add_data(struct comp_ctx *comp_ctx, const char *in_data, int in_len, struct buffer *out);
 int identity_flush(struct comp_ctx *comp_ctx, struct buffer *out, int flag);
 int identity_reset(struct comp_ctx *comp_ctx);
-int identity_end(struct comp_ctx *comp_ctx);
+int identity_end(struct comp_ctx **comp_ctx);
 
 
 #ifdef USE_ZLIB
-
-int deflate_init(struct comp_ctx *comp_ctx, int level);
+int deflate_init(struct comp_ctx **comp_ctx, int level);
 int deflate_add_data(struct comp_ctx *comp_ctx, const char *in_data, int in_len, struct buffer *out);
 int deflate_flush(struct comp_ctx *comp_ctx, struct buffer *out, int flag);
 int deflate_reset(struct comp_ctx *comp_ctx);
-int deflate_end(struct comp_ctx *comp_ctx);
+int deflate_end(struct comp_ctx **comp_ctx);
 
-int gzip_init(struct comp_ctx *comp_ctx, int level);
+int gzip_init(struct comp_ctx **comp_ctx, int level);
 #endif /* USE_ZLIB */
 
 #endif /* _PROTO_COMP_H */
diff --git a/include/types/compression.h b/include/types/compression.h
index cf56e45..e4b1f27 100644
--- a/include/types/compression.h
+++ b/include/types/compression.h
@@ -50,11 +50,11 @@
 struct comp_algo {
 	char *name;
 	int name_len;
-	int (*init)(struct comp_ctx *comp_ctx, int level);
+	int (*init)(struct comp_ctx **comp_ctx, int level);
 	int (*add_data)(struct comp_ctx *comp_ctx, const char *in_data, int in_len, struct buffer *out);
 	int (*flush)(struct comp_ctx *comp_ctx, struct buffer *out, int flag);
 	int (*reset)(struct comp_ctx *comp_ctx);
-	int (*end)(struct comp_ctx *comp_ctx);
+	int (*end)(struct comp_ctx **comp_ctx);
 	struct comp_algo *next;
 };
 
diff --git a/include/types/session.h b/include/types/session.h
index 284b7e8..e0d3c22 100644
--- a/include/types/session.h
+++ b/include/types/session.h
@@ -159,7 +159,7 @@
 	void (*srv_error)(struct session *s,	/* the function to call upon unrecoverable server errors (or NULL) */
 			  struct stream_interface *si);
 	unsigned int uniq_id;			/* unique ID used for the traces */
-	struct comp_ctx comp_ctx;		/* HTTP compression context */
+	struct comp_ctx *comp_ctx;		/* HTTP compression context */
 	struct comp_algo *comp_algo;		/* HTTP compression algorithm if not NULL */
 	char *unique_id;			/* custom unique ID */
 };