diff --git a/src/libsysprof/sysprof-callgraph-private.h b/src/libsysprof/sysprof-callgraph-private.h
index b80c8283..9ccf94aa 100644
--- a/src/libsysprof/sysprof-callgraph-private.h
+++ b/src/libsysprof/sysprof-callgraph-private.h
@@ -94,5 +94,6 @@ void                      _sysprof_callgraph_node_free          (SysprofCallgrap
 SysprofCallgraphCategory  _sysprof_callgraph_node_categorize    (SysprofCallgraphNode     *node);
 void                      _sysprof_callgraph_categorize         (SysprofCallgraph         *self,
                                                                  SysprofCallgraphNode     *node);
+const char               *_sysprof_callgraph_category_get_name  (SysprofCallgraphCategory  category);
 
 G_END_DECLS
diff --git a/src/libsysprof/sysprof-category-summary.c b/src/libsysprof/sysprof-category-summary.c
index ba81881b..deea941a 100644
--- a/src/libsysprof/sysprof-category-summary.c
+++ b/src/libsysprof/sysprof-category-summary.c
@@ -128,11 +128,9 @@ sysprof_category_summary_get_fraction (SysprofCategorySummary *self)
 }
 
 const char *
-sysprof_category_summary_get_category_name (SysprofCategorySummary *self)
+_sysprof_callgraph_category_get_name (SysprofCallgraphCategory category)
 {
-  g_return_val_if_fail (SYSPROF_IS_CATEGORY_SUMMARY (self), NULL);
-
-  switch (self->category)
+  switch (category)
     {
     case SYSPROF_CALLGRAPH_CATEGORY_UNCATEGORIZED:
       return _("Uncategorized");
@@ -203,3 +201,11 @@ sysprof_category_summary_get_category_name (SysprofCategorySummary *self)
       return NULL;
     }
 }
+
+const char *
+sysprof_category_summary_get_category_name (SysprofCategorySummary *self)
+{
+  g_return_val_if_fail (SYSPROF_IS_CATEGORY_SUMMARY (self), NULL);
+
+  return _sysprof_callgraph_category_get_name (self->category);
+}