diff --git a/main.cpp b/main.cpp
index f9ee4c1..0724a19 100644
--- a/main.cpp
+++ b/main.cpp
@@ -20,12 +20,17 @@ bool must_link = false;
 char *getBufferFromFile(const char* filename)
 {
     FILE *f = fopen(filename, "rb");
+    if (!f) {
+        perror("Error opening file");
+        exit(-1);
+    }
     fseek(f, 0, SEEK_END);
     long size = ftell(f);
     fseek(f, 0, SEEK_SET);
     char *buffer = (char*)malloc(size+1);
     fread(buffer, size, 1, f);
     buffer[size] = 0;
+    fclose(f);
     return buffer;
 }