diff --git a/ValgrindCI/render.py b/ValgrindCI/render.py
index 2c943e5..62cb884 100644
--- a/ValgrindCI/render.py
+++ b/ValgrindCI/render.py
@@ -124,10 +124,13 @@ def _extract_error_data(
                 stack["fileref"] = "{}:{}".format(
                     frame.get_path(self._source_dir), error_line
                 )
-                with open(fullname, "r") as f:
-                    for l, code_line in enumerate(f.readlines()):
-                        if l >= stack["line"] and l <= error_line + lines_after - 1:
-                            stack["code"].append(code_line)
+                try:
+                    with open(fullname, "r") as f:
+                        for l, code_line in enumerate(f.readlines()):
+                            if l >= stack["line"] and l <= error_line + lines_after - 1:
+                                stack["code"].append(code_line)
+                except FileNotFoundError:
+                    stack["code"].append("/* Source file not available or could not be opened. */")
             issue["stack"].append(stack)
         return issue