diff --git a/commands/partition.c b/commands/partition.c
index 399cb62..9303987 100755
--- a/commands/partition.c
+++ b/commands/partition.c
@@ -134,7 +134,7 @@
 
 	if (*partstr == '(') {
 		partstr++;
-		end = strchr(partstr, ')');
+		end = strchr((char *) partstr, ')');
 		if (!end) {
 			printf("could not find matching ')'\n");
 			return -EINVAL;
diff --git a/fs/ramfs.c b/fs/ramfs.c
index beee6b9..43878ca 100644
--- a/fs/ramfs.c
+++ b/fs/ramfs.c
@@ -109,7 +109,7 @@
 	pathname++;
 	path = strdup(pathname);
 
-	if ((*file = strrchr(pathname, '/'))) {
+	if ((*file = strrchr((char *) pathname, '/'))) {
 		char *tmp;
 		(*file)++;