1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/optimizing/graph_visualizer.h b/compiler/optimizing/graph_visualizer.h
index f17ba3bbac..4d8bec2422 100644
--- a/compiler/optimizing/graph_visualizer.h
+++ b/compiler/optimizing/graph_visualizer.h
@@ -17,6 +17,8 @@
 #ifndef ART_COMPILER_OPTIMIZING_GRAPH_VISUALIZER_H_
 #define ART_COMPILER_OPTIMIZING_GRAPH_VISUALIZER_H_
 
+#include <ostream>
+
 #include "base/value_object.h"
 
 namespace art {
@@ -61,7 +63,7 @@ class HGraphVisualizer : public ValueObject {
    * If this visualizer is enabled, emit the compilation information
    * in `output_`.
    */
-  void DumpGraph(const char* pass_name);
+  void DumpGraph(const char* pass_name) const;
 
  private:
   std::ostream* const output_;