diff --git a/src/shearwater_petrel.c b/src/shearwater_petrel.c
index 48548c8..a70b392 100644
--- a/src/shearwater_petrel.c
+++ b/src/shearwater_petrel.c
@@ -128,9 +128,6 @@ shearwater_petrel_device_custom_open (dc_device_t **out, dc_context_t *context,
 		return DC_STATUS_NOMEMORY;
 	}
 
-	// Initialize the base class.
-	device_init (&device->base.base, context, &shearwater_petrel_device_vtable);
-
 	// Set the default values.
 	memset (device->fingerprint, 0, sizeof (device->fingerprint));
 
diff --git a/src/shearwater_predator.c b/src/shearwater_predator.c
index 5304284..74dc21f 100644
--- a/src/shearwater_predator.c
+++ b/src/shearwater_predator.c
@@ -114,9 +114,6 @@ shearwater_predator_device_custom_open (dc_device_t **out, dc_context_t *context
 		return DC_STATUS_NOMEMORY;
 	}
 
-	// Initialize the base class.
-	device_init (&device->base.base, context, &shearwater_predator_device_vtable);
-
 	// Set the default values.
 	memset (device->fingerprint, 0, sizeof (device->fingerprint));
 
diff --git a/src/shearwater_predator_parser.c b/src/shearwater_predator_parser.c
index 65c0e18..6490f42 100644
--- a/src/shearwater_predator_parser.c
+++ b/src/shearwater_predator_parser.c
@@ -139,10 +139,8 @@ shearwater_common_parser_create (dc_parser_t **out, dc_context_t *context, unsig
 	parser->petrel = petrel;
 	parser->serial = serial;
 	if (petrel) {
-		parser_init (&parser->base, context, &shearwater_petrel_parser_vtable);
 		parser->samplesize = SZ_SAMPLE_PETREL;
 	} else {
-		parser_init (&parser->base, context, &shearwater_predator_parser_vtable);
 		parser->samplesize = SZ_SAMPLE_PREDATOR;
 	}