diff --git a/fpga/assembler.cc b/fpga/assembler.cc
index 8614605..02a2178 100644
--- a/fpga/assembler.cc
+++ b/fpga/assembler.cc
@@ -108,10 +108,9 @@ static absl::Status ProcessFasmFeatures(
     absl::flat_hash_set<fpga::ConfigBusType> used_config_buses;
     // Select only bit addresses with value bit set to 1.
     for (int addr = 0; addr < tile_feature.width; ++addr) {
-      const unsigned bit_addr = (addr + tile_feature.start_bit);
-      const bool value = bits & (1 << bit_addr);
+      const unsigned feature_addr = (addr + tile_feature.start_bit);
+      const bool value = bits & (1 << feature_addr);
       if (value) {
-        const int feature_addr = addr + tile_feature.start_bit;
         db.ConfigBits(
           tile_name, feature, feature_addr,
           [&frames, &used_config_buses](