diff --git a/tools/imatrix/imatrix.cpp b/tools/imatrix/imatrix.cpp
index ce4dc23e85..617e3d4243 100644
--- a/tools/imatrix/imatrix.cpp
+++ b/tools/imatrix/imatrix.cpp
@@ -703,7 +703,7 @@ void IMatrixCollector::save_imatrix(int32_t n_chunk) const {
         }
 
         to_store.push_back(kv.first);
-        if (activation_statistics()) data_size += GGML_PAD(ggml_tensor_overhead() + sizeof(float) * kv.second.activations.size(), GGML_MEM_ALIGN);
+        if (activation_statistics()) { data_size += GGML_PAD(ggml_tensor_overhead() + sizeof(float) * kv.second.activations.size(), GGML_MEM_ALIGN); }
         data_size += GGML_PAD(ggml_tensor_overhead() + sizeof(float) * kv.second.values.size(), GGML_MEM_ALIGN);
         data_size += GGML_PAD(ggml_tensor_overhead() + sizeof(float) * kv.second.counts.size(), GGML_MEM_ALIGN);
     }