diff --git a/daemon/symlink.c b/daemon/symlink.c
index 68f8426..f54c1e3 100644
--- a/daemon/symlink.c
+++ b/daemon/symlink.c
@@ -225,6 +225,10 @@ int handle_symlink(nfs41_upcall *upcall)
     int status = NO_ERROR;
 
     if (args->set) {
+        /* don't send windows slashes to the server */
+        char *p;
+        for (p = args->target_set; *p; p++) if (*p == '\\') *p = '/';
+
         if (state->file.fh.len) {
             /* the check in handle_open() didn't catch that we're creating
              * a symlink, so we have to remove the file it already created */
diff --git a/daemon/upcall.h b/daemon/upcall.h
index 4215e75..fe47df5 100644
--- a/daemon/upcall.h
+++ b/daemon/upcall.h
@@ -137,7 +137,7 @@ typedef struct __readdir_upcall_args {
 
 typedef struct __symlink_upcall_args {
     nfs41_abs_path target_get;
-    const char *target_set;
+    char *target_set;
     nfs41_root *root;
     nfs41_open_state *state;
     const char *path;