diff --git a/core/uemis.c b/core/uemis.c
index b5d6d006c..c50ecd7a9 100644
--- a/core/uemis.c
+++ b/core/uemis.c
@@ -290,14 +290,13 @@ static void uemis_event(struct dive *dive, struct divecomputer *dc, struct sampl
 /*
  * parse uemis base64 data blob into struct dive
  */
-void uemis_parse_divelog_binary(char *base64, void *datap)
+void uemis_parse_divelog_binary(char *base64, struct dive *dive)
 {
 	int datalen;
 	int i;
 	uint8_t *data;
 	struct sample *sample = NULL;
 	uemis_sample_t *u_sample;
-	struct dive *dive = datap;
 	struct divecomputer *dc = &dive->dc;
 	int template, gasoffset;
 	uint8_t active = 0;
diff --git a/core/uemis.h b/core/uemis.h
index 9c0a70995..6c5840fb2 100644
--- a/core/uemis.h
+++ b/core/uemis.h
@@ -13,7 +13,7 @@
 extern "C" {
 #endif
 
-void uemis_parse_divelog_binary(char *base64, void *divep);
+void uemis_parse_divelog_binary(char *base64, struct dive *dive);
 int uemis_get_weight_unit(uint32_t diveid);
 void uemis_mark_divelocation(int diveid, int divespot, struct dive_site *ds);
 void uemis_set_divelocation(int divespot, char *text, double longitude, double latitude);