diff --git a/src/haggis.c b/src/haggis.c
index ca9f73c..f84c96e 100644
--- a/src/haggis.c
+++ b/src/haggis.c
@@ -247,6 +247,8 @@ int haggis_load_file(FILE *stream, haggis_ft *ft) {
     if (haggis_load_cksum(stream, ft->file->cksum) != 0)
         return 1;
     u8 *data = malloc((size_t)len.val);
+    if (data == NULL)
+        return -1;
     int res = fread(data, 1, (size_t)ft->file->len.val, stream);
     if (res != (size_t)ft->file->len.val) {
         free(ft);
@@ -333,6 +335,8 @@ int haggis_load_filename(FILE *stream, haggis_filename *n) {
         return 2;
     n->len = len;
     name = malloc((size_t)len.val);
+    if (name == NULL)
+        return -1;
     if (fread(name, 1, (size_t)len.val, stream) != (size_t)len.val) {
         free(name);
         return 2;
@@ -379,6 +383,8 @@ haggis_typeflag haggis_filetype_from_mode(u16 mode) {
 
 haggis_node* haggis_create_node(char *file) {
     haggis_node *node = malloc(sizeof(haggis_node));
+    if (node == NULL)
+        return NULL;
     // todo
     return node;
 }