diff --git a/src/shearwater_predator_parser.c b/src/shearwater_predator_parser.c
index 2635457..c3a49c8 100644
--- a/src/shearwater_predator_parser.c
+++ b/src/shearwater_predator_parser.c
@@ -104,7 +104,7 @@ shearwater_predator_find_gasmix (shearwater_predator_parser_t *parser, unsigned
 }
 
 
-dc_status_t
+static dc_status_t
 shearwater_common_parser_create (dc_parser_t **out, dc_context_t *context, unsigned int petrel)
 {
 	shearwater_predator_parser_t *parser = NULL;