1 files changed, 3 insertions, 0 deletions
diff --git a/src/fmt.cff b/src/fmt.cff
index 37b6dc9..00b9b54 100644
--- a/src/fmt.cff
+++ b/src/fmt.cff
@@ -292,6 +292,9 @@ extern fn ssfmt(fmt *const u8, ...) *const u8 {
 fn eprifileline(loc Loc) void {
    let path = fileid2path(loc.fileid);
    let fp = fopen(path, "rb");
+   if fp == #null {
+      return;
+   }
    let line_begin = 0;
    for let i = 0; i < loc.idx; ++i {
       if fgetc(fp) == '\n' {