diff --git a/protobuf.c b/protobuf.c
index 50b1e68..44f9ed7 100644
--- a/protobuf.c
+++ b/protobuf.c
@@ -10,8 +10,9 @@ static uint32_t read_num(FILE* fp) {
     uint8_t i = 0;
     do {
         c = fgetc(fp);
-        n |= (c & 0x7f) << (7 * i++);
-    } while(c & 0x80);
+        if(feof(fp)) return n;
+        else n |= (c & 0x7f) << (7 * i++);
+    } while((c & 0x80));
     return n;
 }
 
@@ -46,6 +47,7 @@ SIMPLE_PB* get_pb(FILE* fp) {
             while(p < end) {
                 uint32_t offset = read_num(fp);
                 uint32_t data_len = read_num(fp);
+                printf("offset: %u, datlen: %u\n", offset, data_len);
                 if(data_len > 0) fread(p, data_len, 1, fp);
                 p += offset;
             }