diff --git a/unit/internal/multi_bit_compress.cpp b/unit/internal/multi_bit_compress.cpp
index e7431174..14c3f480 100644
--- a/unit/internal/multi_bit_compress.cpp
+++ b/unit/internal/multi_bit_compress.cpp
@@ -402,7 +402,6 @@ TEST_P(MultiBitCompTest, CompCompressDecompressDense) {
 TEST(MultiBitComp, CompIntegration1) {
     // 256 + 1 --> smallest 2-level mmbit
     u32 total_size = mmbit_size(257);
-    (void)total_size;
     mmbit_holder ba(257);
 
     //-------------------- 1 -----------------------//
@@ -518,7 +517,6 @@ TEST(MultiBitComp, CompIntegration1) {
 TEST(MultiBitComp, CompIntegration2) {
     // 64^2 + 1 --> smallest 3-level mmbit
     u32 total_size = mmbit_size(4097);
-    (void)total_size;
     mmbit_holder ba(4097);
 
     //-------------------- 1 -----------------------//
@@ -648,7 +646,6 @@ TEST(MultiBitComp, CompIntegration2) {
 TEST(MultiBitComp, CompIntegration3) {
     // 64^3 + 1 --> smallest 4-level mmbit
     u32 total_size = mmbit_size(262145);
-    (void)total_size;
     mmbit_holder ba(262145);
 
     //-------------------- 1 -----------------------//