1 files changed, 2 insertions, 2 deletions
diff --git a/include/salticidae/stream.h b/include/salticidae/stream.h
index 03b9d13..267d294 100644
--- a/include/salticidae/stream.h
+++ b/include/salticidae/stream.h
@@ -109,11 +109,11 @@ class DataStream {
 
     const uint8_t *get_data_inplace(size_t len) {
         auto res = (uint8_t *)&*(buffer.begin() + offset);
+        offset += len;
 #ifndef SALTICIDAE_NOCHECK
-        if (offset + len > buffer.size())
+        if (offset > buffer.size())
             throw std::ios_base::failure("insufficient buffer");
 #endif
-        offset += len;
         return res;
     }