diff --git a/wpiutil/src/main/native/include/wpi/raw_uv_ostream.h b/wpiutil/src/main/native/include/wpi/raw_uv_ostream.h
index 463043c307..4773c610c0 100644
--- a/wpiutil/src/main/native/include/wpi/raw_uv_ostream.h
+++ b/wpiutil/src/main/native/include/wpi/raw_uv_ostream.h
@@ -53,6 +53,11 @@ class raw_uv_ostream : public raw_ostream {
 
   void flush() = delete;
 
+  /**
+   * Resets the amount of allocated space.
+   */
+  void reset() { m_left = 0; }
+
  private:
   void write_impl(const char* data, size_t len) override;
   uint64_t current_pos() const override;