diff --git a/data/pattern.txt b/data/pattern.txt
new file mode 100644
index 0000000..f9aaec1
--- /dev/null
+++ b/data/pattern.txt
@@ -0,0 +1 @@
+mamma
diff --git a/data/text.txt b/data/text.txt
new file mode 100644
index 0000000..affe5cc
--- /dev/null
+++ b/data/text.txt
@@ -0,0 +1 @@
+testo di esempio mamma altra mamma esempio prova mammamma esempio mamma
diff --git a/main.c b/main.c
index 757ca28..b672ba2 100644
--- a/main.c
+++ b/main.c
@@ -100,11 +100,8 @@ void find_end(int residue, char *pattern, char *text, int **matches, int *match_
 }
 
 void initialize() {
-    text = "testo di esempio mamma altra mamma esempio prova mammamma esempio mamma";//read_file("data/text.txt", &text_len);
-    pattern = "mamma";//read_file("data/pattern.txt", &pattern_len);
-
-    text_len = strlen(text);
-    pattern_len = strlen(pattern);
+    text = read_file("data/text.txt", &text_len);
+    pattern = read_file("data/pattern.txt", &pattern_len);
 
     printf("text: %s\n", text);
     printf("pattern: %s\n", pattern);
diff --git a/util.c b/util.c
index 84a7c43..d09bfa6 100644
--- a/util.c
+++ b/util.c
@@ -37,8 +37,9 @@ char *read_file(char *filepath, int *len) {
     *len = ftell(f);
     fseek(f, 0, SEEK_SET);
 
-    char *content = (char *) malloc(sizeof(char) * (*len + 1));
+    char *content = (char *) malloc(sizeof(char) * (*len));
     fread(content, 1, *len, f);
+    *len = *len - 1;
     content[*len] = '\0';
 
     fclose(f);