diff --git a/src/symbols/symbols_with_dbghelp.cpp b/src/symbols/symbols_with_dbghelp.cpp
index 8bd3154..ca739ad 100644
--- a/src/symbols/symbols_with_dbghelp.cpp
+++ b/src/symbols/symbols_with_dbghelp.cpp
@@ -378,7 +378,7 @@ namespace dbghelp {
                 signature = std::regex_replace(signature, comma_re, ", ");
                 return {
                     addr,
-                    static_cast<std::int32_t>(line.LineNumber),
+                    static_cast<std::uint32_t>(line.LineNumber),
                     nullable<std::uint32_t>::null(),
                     line.FileName,
                     signature,