diff --git a/libfprint/fp-device-private.h b/libfprint/fp-device-private.h
index 9b2ea27c..759a678f 100644
--- a/libfprint/fp-device-private.h
+++ b/libfprint/fp-device-private.h
@@ -111,8 +111,6 @@ typedef struct
   GDestroyNotify   enroll_progress_destroy;
 } FpEnrollData;
 
-void enroll_data_free (FpEnrollData *enroll_data);
-
 typedef struct
 {
   FpPrint       *enrolled_print;   /* verify */
@@ -128,7 +126,6 @@ typedef struct
   GDestroyNotify match_destroy;
 } FpMatchData;
 
-void match_data_free (FpMatchData *match_data);
 
 void fpi_device_suspend (FpDevice *device);
 void fpi_device_resume (FpDevice *device);
diff --git a/libfprint/fp-device.c b/libfprint/fp-device.c
index 17178d19..c1436448 100644
--- a/libfprint/fp-device.c
+++ b/libfprint/fp-device.c
@@ -1088,6 +1088,15 @@ fp_device_resume_finish (FpDevice     *device,
   return g_task_propagate_boolean (G_TASK (result), error);
 }
 
+static void
+enroll_data_free (FpEnrollData *data)
+{
+  if (data->enroll_progress_destroy)
+    data->enroll_progress_destroy (data->enroll_progress_data);
+  data->enroll_progress_data = NULL;
+  g_clear_object (&data->print);
+  g_free (data);
+}
 
 /**
  * fp_device_enroll:
@@ -1217,6 +1226,23 @@ fp_device_enroll_finish (FpDevice     *device,
   return g_task_propagate_pointer (G_TASK (result), error);
 }
 
+static void
+match_data_free (FpMatchData *data)
+{
+  g_clear_object (&data->print);
+  g_clear_object (&data->match);
+  g_clear_error (&data->error);
+
+  if (data->match_destroy)
+    data->match_destroy (data->match_data);
+  data->match_data = NULL;
+
+  g_clear_object (&data->enrolled_print);
+  g_clear_pointer (&data->gallery, g_ptr_array_unref);
+
+  g_free (data);
+}
+
 /**
  * fp_device_verify:
  * @device: a #FpDevice
diff --git a/libfprint/fpi-device.c b/libfprint/fpi-device.c
index ba750654..1b9fa8f3 100644
--- a/libfprint/fpi-device.c
+++ b/libfprint/fpi-device.c
@@ -522,33 +522,6 @@ fpi_device_get_driver_data (FpDevice *device)
   return priv->driver_data;
 }
 
-void
-enroll_data_free (FpEnrollData *data)
-{
-  if (data->enroll_progress_destroy)
-    data->enroll_progress_destroy (data->enroll_progress_data);
-  data->enroll_progress_data = NULL;
-  g_clear_object (&data->print);
-  g_free (data);
-}
-
-void
-match_data_free (FpMatchData *data)
-{
-  g_clear_object (&data->print);
-  g_clear_object (&data->match);
-  g_clear_error (&data->error);
-
-  if (data->match_destroy)
-    data->match_destroy (data->match_data);
-  data->match_data = NULL;
-
-  g_clear_object (&data->enrolled_print);
-  g_clear_pointer (&data->gallery, g_ptr_array_unref);
-
-  g_free (data);
-}
-
 /**
  * fpi_device_get_enroll_data:
  * @device: The #FpDevice