diff --git a/src/sysprof/sysprof-time-scrubber.c b/src/sysprof/sysprof-time-scrubber.c
index ab9a0b52..392ab9ae 100644
--- a/src/sysprof/sysprof-time-scrubber.c
+++ b/src/sysprof/sysprof-time-scrubber.c
@@ -669,7 +669,7 @@ sysprof_time_scrubber_set_session (SysprofTimeScrubber *self,
     }
 }
 
-static void
+void
 sysprof_time_scrubber_add_chart (SysprofTimeScrubber *self,
                                  GtkWidget           *chart)
 {
diff --git a/src/sysprof/sysprof-time-scrubber.h b/src/sysprof/sysprof-time-scrubber.h
index 0ae3b4fe..d7657cb1 100644
--- a/src/sysprof/sysprof-time-scrubber.h
+++ b/src/sysprof/sysprof-time-scrubber.h
@@ -34,5 +34,7 @@ GtkWidget      *sysprof_time_scrubber_new         (void);
 SysprofSession *sysprof_time_scrubber_get_session (SysprofTimeScrubber *self);
 void            sysprof_time_scrubber_set_session (SysprofTimeScrubber *self,
                                                    SysprofSession      *session);
+void            sysprof_time_scrubber_add_chart   (SysprofTimeScrubber *self,
+                                                   GtkWidget           *chart);
 
 G_END_DECLS