diff --git a/tsschecker/tss.c b/tsschecker/tss.c
index 5e1c0927..e7f485a5 100644
--- a/tsschecker/tss.c
+++ b/tsschecker/tss.c
@@ -163,7 +163,7 @@ uint64_t _plist_dict_get_uint(plist_t dict, const char *key)
             } else if (strsz == 1) {
                 uintval = strval[0];
             } else {
-                error("%s: ERROR: invalid size %d for data to integer conversion\n", __func__, strsz);
+                error("%s: ERROR: invalid size %llu for data to integer conversion\n", __func__, strsz);
             }
             free(strval);
         }
@@ -209,7 +209,7 @@ uint8_t _plist_dict_get_bool(plist_t dict, const char *key)
             if (strsz == 1) {
                 bval = strval[0];
             } else {
-                error("%s: ERROR: invalid size %d for data to boolean conversion\n", __func__, strsz);
+                error("%s: ERROR: invalid size %llu for data to boolean conversion\n", __func__, strsz);
             }
             free(strval);
         }
diff --git a/tsschecker/tsschecker.h b/tsschecker/tsschecker.h
index 573741cd..a785070c 100644
--- a/tsschecker/tsschecker.h
+++ b/tsschecker/tsschecker.h
@@ -85,8 +85,8 @@ typedef struct{
 
 int parseHex(const char *nonce, size_t *parsedLen, char *ret, size_t *retSize);
 
-char *getFirmwareJson();
-char *getOtaJson();
+char *getFirmwareJson(void);
+char *getOtaJson(void);
 long parseTokens(const char *json, jssytok_t **tokens);
 char **getListOfiOSForDevice(jssytok_t *tokens, const char *device, int isOTA, int *versionCntt);
 int printListOfDevices(jssytok_t *tokens);