1 files changed, 2 insertions, 0 deletions
diff --git a/libcoopgamma.h b/libcoopgamma.h
index 5f5e800..f6a7554 100644
--- a/libcoopgamma.h
+++ b/libcoopgamma.h
@@ -714,6 +714,8 @@ typedef struct libcoopgamma_context {
 
 	/**
 	 * File descriptor for the socket
+	 * 
+	 * `-1` if no file descriptor is used
 	 */
 	int fd;