diff --git a/include/proto/compression.h b/include/proto/compression.h
index 0eaa216..a2e80b8 100644
--- a/include/proto/compression.h
+++ b/include/proto/compression.h
@@ -25,6 +25,8 @@
 
 #include <types/compression.h>
 
+extern unsigned int compress_min_idle;
+
 int comp_append_type(struct comp *comp, const char *type);
 int comp_append_algo(struct comp *comp, const char *algo);
 
@@ -40,6 +42,7 @@
 int identity_end(struct comp_ctx **comp_ctx);
 
 
+
 #ifdef USE_ZLIB
 extern long zlib_used_memory;