diff --git a/libluna/include/luna/SystemError.h b/libluna/include/luna/SystemError.h
index 869f7a7f..43b2579c 100644
--- a/libluna/include/luna/SystemError.h
+++ b/libluna/include/luna/SystemError.h
@@ -45,11 +45,15 @@
 #define EOVERFLOW 75    // Value too large for defined data type
 #define EILSEQ 84       // Invalid or incomplete multibyte or wide character
 #define ENOTSOCK 88     // Socket operation on non-socket
+#define EDESTADDRREQ 89 // Destination address required
+#define EPROTOTYPE 91   // Protocol wrong type for socket
 #define ENOTSUP 95      // Operation not supported
 #define EOPNOTSUPP 95   // Operation not supported
+#define EAFNOSUPPORT 97 // Address family not supported by protocol
 #define EADDRINUSE 98   // Address already in use
 #define ENETRESET 102   // Network dropped connection on reset
 #define ECONNRESET 104  // Connection reset by peer
 #define EISCONN 106     // Transport endpoint is already connected
+#define ENOTCONN 107    // Transport endpoint is not connected
 #define ETIMEDOUT 110   // Connection timed out
 #define EALREADY 114    // Operation already in progress
diff --git a/libluna/src/SystemError.cpp b/libluna/src/SystemError.cpp
index 9b7bf473..744ae86d 100644
--- a/libluna/src/SystemError.cpp
+++ b/libluna/src/SystemError.cpp
@@ -56,6 +56,10 @@ const char* error_string(int error)
     case EISCONN: return "Transport endpoint is already connected";
     case ETIMEDOUT: return "Connection timed out";
     case EALREADY: return "Operation already in progress";
+    case EDESTADDRREQ: return "Destination address required";
+    case EPROTOTYPE: return "Protocol wrong type for socket";
+    case EAFNOSUPPORT: return "Address family not supported by protocol";
+    case ENOTCONN: return "Transport endpoint is not connected";
     default: return "Unknown error";
     }
 }