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-rw-r--r--src/rt/rust_shape.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/rt/rust_shape.cpp b/src/rt/rust_shape.cpp
index ae578081164..8ad36af4ed2 100644
--- a/src/rt/rust_shape.cpp
+++ b/src/rt/rust_shape.cpp
@@ -394,7 +394,8 @@ log::walk_string2(const std::pair<ptr,ptr> &data) {
             if (isprint(ch)) {
                 out << ch;
             } else if (ch) {
-                out << "\\x" << std::setw(2) << std::setfill('0') << (int)ch;
+                out << "\\x" << std::setw(2) << std::setfill('0')
+                    << (unsigned int)(unsigned char)ch;
             }
         }
         ++subdp;