diff --git a/Implementierung/src/io.c b/Implementierung/src/io.c
index 4312cd4..3f1acbb 100644
--- a/Implementierung/src/io.c
+++ b/Implementierung/src/io.c
@@ -47,9 +47,9 @@ uint8_t* read_file(const char* path, size_t* size) {
     return NULL;
   }
 
-  fread(data, 1, statOfFile.st_size, f);
+  size_t bytes_read = fread(data, 1, statOfFile.st_size, f);
 
-  if (ferror(f)) {
+  if (bytes_read == 0 || ferror(f)) {
     fclose(f);
     if (errno == 0) errno = EIO;
     return NULL;