diff --git a/src/net_rl.h b/src/net_rl.h
index 4c0e3890..d731b295 100644
--- a/src/net_rl.h
+++ b/src/net_rl.h
@@ -16,7 +16,7 @@
 #define MG_SOCK_RESET(errcode) \
   ((errcode) == BSD_ECONNABORTED || (errcode) == BSD_ECONNRESET)
 
-#define MG_SOCK_INTR(fd) 0
+#define MG_SOCK_INTR(fd) (fd == BSD_EWOULDBLOCK)
 
 #define socklen_t int
 #endif