diff --git a/src/backend/port/win32/socket.c b/src/backend/port/win32/socket.c
index af151e8470..70592afe54 100644
--- a/src/backend/port/win32/socket.c
+++ b/src/backend/port/win32/socket.c
@@ -47,8 +47,8 @@ int			pgwin32_noblock = 0;
  *
  * Note: where there is a direct correspondence between a WSAxxx error code
  * and a Berkeley error symbol, this mapping is actually a no-op, because
- * in win32.h we redefine the network-related Berkeley error symbols to have
- * the values of their WSAxxx counterparts.  The point of the switch is
+ * in win32_port.h we redefine the network-related Berkeley error symbols to
+ * have the values of their WSAxxx counterparts.  The point of the switch is
  * mostly to translate near-miss error codes into something that's sensible
  * in the Berkeley universe.
  */
@@ -141,10 +141,15 @@ TranslateSocketError(void)
 		case WSAEDISCON:
 			errno = ENOTCONN;
 			break;
+		case WSAETIMEDOUT:
+			errno = ETIMEDOUT;
+			break;
 		default:
 			ereport(NOTICE,
-					(errmsg_internal("unrecognized win32 socket error code: %d", WSAGetLastError())));
+					(errmsg_internal("unrecognized win32 socket error code: %d",
+									 WSAGetLastError())));
 			errno = EINVAL;
+			break;
 	}
 }
 
diff --git a/src/include/port.h b/src/include/port.h
index 82f63de325..2ff529fa59 100644
--- a/src/include/port.h
+++ b/src/include/port.h
@@ -119,7 +119,8 @@ extern void pgfnames_cleanup(char **filenames);
 	case EHOSTUNREACH: \
 	case ENETDOWN: \
 	case ENETRESET: \
-	case ENETUNREACH
+	case ENETUNREACH: \
+	case ETIMEDOUT
 
 /* Portable locale initialization (in exec.c) */
 extern void set_pglocale_pgservice(const char *argv0, const char *app);
diff --git a/src/include/port/win32_port.h b/src/include/port/win32_port.h
index 05c5a53442..093a009aee 100644
--- a/src/include/port/win32_port.h
+++ b/src/include/port/win32_port.h
@@ -381,6 +381,8 @@ extern int	_pgstat64(const char *name, struct stat *buf);
 #define ENETUNREACH WSAENETUNREACH
 #undef ENOTCONN
 #define ENOTCONN WSAENOTCONN
+#undef ETIMEDOUT
+#define ETIMEDOUT WSAETIMEDOUT
 
 /*
  * Locale stuff.
diff --git a/src/port/strerror.c b/src/port/strerror.c
index c07c983e75..9b98f77b42 100644
--- a/src/port/strerror.c
+++ b/src/port/strerror.c
@@ -250,10 +250,8 @@ get_errno_symbol(int errnum)
 #endif
 		case ESRCH:
 			return "ESRCH";
-#ifdef ETIMEDOUT
 		case ETIMEDOUT:
 			return "ETIMEDOUT";
-#endif
 #ifdef ETXTBSY
 		case ETXTBSY:
 			return "ETXTBSY";