1 files changed, 1 insertions, 1 deletions
diff --git a/uemis.c b/uemis.c
index b2eda8f73..e60e94a00 100644
--- a/uemis.c
+++ b/uemis.c
@@ -90,7 +90,7 @@ static int uemis_convert_base64(char *base64, uint8_t **data)
 		fprintf(stderr, "Out of memory\n");
 		goto bail;
 	}
-	decode(base64, *data, len);
+	decode((unsigned char *)base64, *data, len);
 
 	if (memcmp(*data, "Dive\01\00\00", 7))
 		fprintf(stderr, "Missing Dive100 header\n");