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-rw-r--r--include/ruby/ruby.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
index 54018ab27..7da0b9e90 100644
--- a/include/ruby/ruby.h
+++ b/include/ruby/ruby.h
@@ -417,7 +417,7 @@ VALUE rb_str_export(VALUE);
VALUE rb_str_export_locale(VALUE);
VALUE rb_get_path(VALUE);
-#define FilePathValue(v) ((v) = rb_get_path(v))
+#define FilePathValue(v) (RB_GC_GUARD(v) = rb_get_path(v))
VALUE rb_get_path_no_checksafe(VALUE);
#define FilePathStringValue(v) ((v) = rb_get_path_no_checksafe(v))