diff --git a/api.cpp b/api.cpp
index fa716ba80f..7018130826 100644
--- a/api.cpp
+++ b/api.cpp
@@ -174,7 +174,7 @@ static char *getsummary(char *params)
 
 	*buffer = '\0';
 	sprintf(buffer, "NAME=%s;VER=%s;API=%s;"
-		"ALGO=%s;KHS=%.2f;ACC=%d;REJ=%d;ACCMN=%.3f;UPTIME=%.1f|",
+		"ALGO=%s;KHS=%.2f;ACC=%d;REJ=%d;ACCMN=%.3f;UPTIME=%.0f|",
 		PACKAGE_NAME, PACKAGE_VERSION, APIVERSION,
 		algo, (double)global_hashrate / 1000.0,
 		accepted_count, rejected_count,
diff --git a/hashlog.cpp b/hashlog.cpp
index 025ba14d32..fd5b669637 100644
--- a/hashlog.cpp
+++ b/hashlog.cpp
@@ -63,8 +63,7 @@ extern "C" uint32_t hashlog_already_submittted(char* jobid, uint32_t nonce)
 extern "C" void hashlog_remember_submit(char* jobid, uint32_t nonce, uint32_t scanned_from)
 {
 	uint64_t njobid = hextouint(jobid);
-	uint64_t keyall = (njobid << 32);
-	uint64_t key = keyall + nonce;
+	uint64_t key = (njobid << 32) + nonce;
 	hashlog_data data;
 
 	memset(&data, 0, sizeof(data));
@@ -80,12 +79,12 @@ extern "C" void hashlog_remember_submit(char* jobid, uint32_t nonce, uint32_t sc
 extern "C" void hashlog_remember_scan_range(char* jobid, uint32_t scanned_from, uint32_t scanned_to)
 {
 	uint64_t njobid = hextouint(jobid);
-	uint64_t keyall = (njobid << 32);
+	uint64_t key = (njobid << 32);
 	uint64_t range = hashlog_get_scan_range(jobid);
 	hashlog_data data;
 
 	// global scan range of a job
-	data = tlastshares[keyall];
+	data = tlastshares[key];
 	if (range == 0) {
 		memset(&data, 0, sizeof(data));
 	} else {
@@ -110,7 +109,7 @@ extern "C" void hashlog_remember_scan_range(char* jobid, uint32_t scanned_from,
 
 	data.tm_upd = (uint32_t) time(NULL);
 
-	tlastshares[keyall] = data;
+	tlastshares[key] = data;
 /* 	applog(LOG_BLUE, "job %s range : %x %x -> %x %x", jobid,
 		scanned_from, scanned_to, data.scanned_from, data.scanned_to); */
 }
@@ -124,13 +123,14 @@ extern "C" uint64_t hashlog_get_scan_range(char* jobid)
 	uint64_t ret = 0;
 	uint64_t njobid = hextouint(jobid);
 	uint64_t keypfx = (njobid << 32);
+	uint64_t keymsk = (UINT_MAX << 32);
 	hashlog_data data;
 
 	data.scanned_from = 0;
 	data.scanned_to = 0;
 	std::map<uint64_t, hashlog_data>::iterator i = tlastshares.begin();
 	while (i != tlastshares.end()) {
-		if ((keypfx & i->first) == keypfx && i->second.scanned_to > ret) {
+		if ((keymsk & i->first) == keypfx && i->second.scanned_to > ret) {
 			if (i->second.scanned_to > data.scanned_to)
 				data.scanned_to = i->second.scanned_to;
 			if (i->second.scanned_from < data.scanned_from || data.scanned_from == 0)
diff --git a/stats.cpp b/stats.cpp
index 043eeadded..a2b2ed3bae 100644
--- a/stats.cpp
+++ b/stats.cpp
@@ -72,13 +72,14 @@ extern "C" double stats_get_speed(int thr_id)
 {
 	uint64_t thr = (0xff && thr_id);
 	uint64_t keypfx = (thr << 56);
+	uint64_t keymsk = (0xff << 56);
 	double speed = 0.0;
 	int records = 0;
 
 	std::map<uint64_t, stats_data>::reverse_iterator i = tlastscans.rbegin();
 	while (i != tlastscans.rend() && records < opt_statsavg) {
 		if (!i->second.ignored)
-		if (thr_id == -1 || (keypfx & i->first) == keypfx) {
+		if (thr_id == -1 || (keymsk & i->first) == keypfx) {
 			if (i->second.hashcount > 1000) {
 				speed += i->second.hashrate;
 				records++;