diff --git a/examples/main/main.cpp b/examples/main/main.cpp
index 587fcb036..57cc1e486 100644
--- a/examples/main/main.cpp
+++ b/examples/main/main.cpp
@@ -204,7 +204,7 @@ int main(int argc, char ** argv) {
 
     // if we will use the cache for the full prompt without reaching the end of the cache, force
     // reevaluation of the last token token to recalculate the cached logits
-    if (embd_inp.size() && n_matching_session_tokens == embd_inp.size() &&
+    if (!embd_inp.empty() && n_matching_session_tokens == embd_inp.size() &&
             session_tokens.size() > embd_inp.size()) {
         session_tokens.resize(embd_inp.size() - 1);
     }