diff --git a/sk1/compressor.c b/sk1/compressor.c
index 622fef4..8f99a18 100644
--- a/sk1/compressor.c
+++ b/sk1/compressor.c
@@ -82,13 +82,13 @@ int LZ78compress(struct Input input, struct Output* output) {
             current->toddler[character] = create_node();
             current->toddler[character]->id = ++currentIndex;
 
-        int sz_needed = snprintf(NULL, 0, "-%d-%c\n", current->id, character);
-        char* new_last = calloc(sz_needed + 1, sizeof(char));
+        int size_n = snprintf(NULL, 0, "-%d-%c\n", current->id, character);
+        char* new_last = calloc(size_n + 1, sizeof(char));
         sprintf(new_last, "-%d-%c\n", current->id, character );
 
             if (last != NULL) {
                 size_t last_len = strlen(last);
-                char* temp = calloc(last_len + sz_needed + 1, sizeof(char));
+                char* temp = calloc(last_len + size_n + 1, sizeof(char));
                 strcpy(temp, last);
                 strcat(temp, new_last);
                 free(last);