diff --git a/src/common/kernel/border.c b/src/common/kernel/border.c
index cfab0b31f..2742ced80 100644
--- a/src/common/kernel/border.c
+++ b/src/common/kernel/border.c
@@ -109,7 +109,7 @@ read_borders(FILE * f)
 			fscanf(f, "%d %d %d %d ", &fx, &fy, &tx, &ty);
 			bid = ++nextborder;
 		} else {
-			fscanf(f, "%d %d %d %d %d", &bid, &fx, &fy, &tx, &ty);
+			fscanf(f, "%ud %d %d %d %d", &bid, &fx, &fy, &tx, &ty);
 		}
 		type = find_bordertype(zText);
 		assert(type || !"border type not registered");
@@ -209,7 +209,7 @@ b_read(border * b, FILE *f)
 	if (global.data_version<NEWROAD_VERSION)
 		fscanf(f, "%d ", (int*)&b->data);
 	else
-		fscanf(f, "%x ", (int*)&b->data);
+		fscanf(f, "%x ", (unsigned int*)&b->data);
 }
 
 void
diff --git a/src/common/kernel/item.c b/src/common/kernel/item.c
index f17998dd2..d25c18e3e 100644
--- a/src/common/kernel/item.c
+++ b/src/common/kernel/item.c
@@ -2432,7 +2432,7 @@ rt_read(FILE * F)
 {
 	resource_type * rt = calloc(sizeof(resource_type), 1);
 	unsigned int hash;
-	int i = fscanf(F, "%d\n", &hash);
+	int i = fscanf(F, "%ud\n", &hash);
 	if (i==0 || i==EOF) {
 		free(rt);
 		return NULL;
diff --git a/src/eressea/main.c b/src/eressea/main.c
index 60a3fe324..ce97ad7ac 100644
--- a/src/eressea/main.c
+++ b/src/eressea/main.c
@@ -558,8 +558,6 @@ typedef struct lostdata {
 	int ship;
 } lostdata;
 
-static unit * lostunits;
-
 int
 main(int argc, char *argv[])
 {
diff --git a/src/mapper/logging.c b/src/mapper/logging.c
index deb620927..a96b852f7 100644
--- a/src/mapper/logging.c
+++ b/src/mapper/logging.c
@@ -36,7 +36,7 @@ log_read(const char * filename)
 	char buf[64];
 
 	while (*fp) fp=&(*fp)->next;
-	fscanf(log, "LOGVERSION %d\n", &global.data_version);
+	fscanf(log, "LOGVERSION %ud\n", &global.data_version);
 	while (!feof(log)) {
 		if(fscanf(log, "%s", buf) == EOF) break;
 		if (strcmp(buf, "UNIT")==0) {