diff --git a/src/libsysprof-analyze/sysprof-document-counter-value.c b/src/libsysprof-analyze/sysprof-document-counter-value.c
index 4fb9bf95..c374aba9 100644
--- a/src/libsysprof-analyze/sysprof-document-counter-value.c
+++ b/src/libsysprof-analyze/sysprof-document-counter-value.c
@@ -151,3 +151,14 @@ sysprof_document_counter_value_get_value_double (SysprofDocumentCounterValue *se
   else
     return (double)self->value.v_int64;
 }
+
+char *
+sysprof_document_counter_value_format (SysprofDocumentCounterValue *self)
+{
+  g_return_val_if_fail (SYSPROF_IS_DOCUMENT_COUNTER_VALUE (self), NULL);
+
+  if (self->type == SYSPROF_CAPTURE_COUNTER_DOUBLE)
+    return g_strdup_printf ("%lf", self->value.v_double);
+  else
+    return g_strdup_printf ("%ld", self->value.v_int64);
+}
diff --git a/src/libsysprof-analyze/sysprof-document-counter-value.h b/src/libsysprof-analyze/sysprof-document-counter-value.h
index d780baf8..6f7cfee4 100644
--- a/src/libsysprof-analyze/sysprof-document-counter-value.h
+++ b/src/libsysprof-analyze/sysprof-document-counter-value.h
@@ -32,14 +32,16 @@ SYSPROF_AVAILABLE_IN_ALL
 G_DECLARE_FINAL_TYPE (SysprofDocumentCounterValue, sysprof_document_counter_value, SYSPROF, DOCUMENT_COUNTER_VALUE, GObject)
 
 SYSPROF_AVAILABLE_IN_ALL
-gint64 sysprof_document_counter_value_get_time         (SysprofDocumentCounterValue *self);
+gint64  sysprof_document_counter_value_get_time         (SysprofDocumentCounterValue *self);
 SYSPROF_AVAILABLE_IN_ALL
-void   sysprof_document_counter_value_get_value        (SysprofDocumentCounterValue *self,
-                                                        GValue                      *value);
+void    sysprof_document_counter_value_get_value        (SysprofDocumentCounterValue *self,
+                                                         GValue                      *value);
 SYSPROF_AVAILABLE_IN_ALL
-gint64 sysprof_document_counter_value_get_value_int64  (SysprofDocumentCounterValue *self);
+gint64  sysprof_document_counter_value_get_value_int64  (SysprofDocumentCounterValue *self);
 SYSPROF_AVAILABLE_IN_ALL
-double sysprof_document_counter_value_get_value_double (SysprofDocumentCounterValue *self);
+double  sysprof_document_counter_value_get_value_double (SysprofDocumentCounterValue *self);
+SYSPROF_AVAILABLE_IN_ALL
+char   *sysprof_document_counter_value_format           (SysprofDocumentCounterValue *self);
 
 
 G_END_DECLS