diff --git a/source/use_case/asr/include/Wav2LetterPostprocess.hpp b/source/use_case/asr/include/Wav2LetterPostprocess.hpp
index a744e0f..29eb548 100644
--- a/source/use_case/asr/include/Wav2LetterPostprocess.hpp
+++ b/source/use_case/asr/include/Wav2LetterPostprocess.hpp
@@ -18,7 +18,7 @@
 #define ASR_WAV2LETTER_POSTPROCESS_HPP
 
 #include "TensorFlowLiteMicro.hpp" /* TensorFlow headers. */
-#include "hal.h"    /* stdout facility. */
+#include "log_macros.h"
 
 namespace arm {
 namespace app {
diff --git a/source/use_case/asr/include/Wav2LetterPreprocess.hpp b/source/use_case/asr/include/Wav2LetterPreprocess.hpp
index b0e0c67..13d1589 100644
--- a/source/use_case/asr/include/Wav2LetterPreprocess.hpp
+++ b/source/use_case/asr/include/Wav2LetterPreprocess.hpp
@@ -21,6 +21,7 @@
 #include "Wav2LetterMfcc.hpp"
 #include "AudioUtils.hpp"
 #include "DataStructures.hpp"
+#include "log_macros.h"
 
 namespace arm {
 namespace app {
diff --git a/source/use_case/asr/src/AsrClassifier.cc b/source/use_case/asr/src/AsrClassifier.cc
index a715068..84e66b7 100644
--- a/source/use_case/asr/src/AsrClassifier.cc
+++ b/source/use_case/asr/src/AsrClassifier.cc
@@ -16,7 +16,7 @@
  */
 #include "AsrClassifier.hpp"
 
-#include "hal.h"
+#include "log_macros.h"
 #include "TensorFlowLiteMicro.hpp"
 #include "Wav2LetterModel.hpp"
 
diff --git a/source/use_case/asr/src/MainLoop.cc b/source/use_case/asr/src/MainLoop.cc
index 87145f4..40624f3 100644
--- a/source/use_case/asr/src/MainLoop.cc
+++ b/source/use_case/asr/src/MainLoop.cc
@@ -23,6 +23,7 @@
 #include "InputFiles.hpp"            /* Generated audio clip header. */
 #include "Wav2LetterPreprocess.hpp"  /* Pre-processing class. */
 #include "Wav2LetterPostprocess.hpp" /* Post-processing class. */
+#include "log_macros.h"
 
 enum opcodes
 {
diff --git a/source/use_case/asr/src/UseCaseHandler.cc b/source/use_case/asr/src/UseCaseHandler.cc
index f13de0d..afcb6e4 100644
--- a/source/use_case/asr/src/UseCaseHandler.cc
+++ b/source/use_case/asr/src/UseCaseHandler.cc
@@ -27,6 +27,7 @@
 #include "Wav2LetterPreprocess.hpp"
 #include "Wav2LetterPostprocess.hpp"
 #include "OutputDecode.hpp"
+#include "log_macros.h"
 
 namespace arm {
 namespace app {
diff --git a/source/use_case/asr/src/Wav2LetterMfcc.cc b/source/use_case/asr/src/Wav2LetterMfcc.cc
index 0eb152a..1bcaa66 100644
--- a/source/use_case/asr/src/Wav2LetterMfcc.cc
+++ b/source/use_case/asr/src/Wav2LetterMfcc.cc
@@ -15,8 +15,8 @@
  * limitations under the License.
  */
 #include "Wav2LetterMfcc.hpp"
-
 #include "PlatformMath.hpp"
+#include "log_macros.h"
 
 #include <cfloat>
 
diff --git a/source/use_case/asr/src/Wav2LetterModel.cc b/source/use_case/asr/src/Wav2LetterModel.cc
index a22dc55..766bce9 100644
--- a/source/use_case/asr/src/Wav2LetterModel.cc
+++ b/source/use_case/asr/src/Wav2LetterModel.cc
@@ -15,8 +15,8 @@
  * limitations under the License.
  */
 #include "Wav2LetterModel.hpp"
+#include "log_macros.h"
 
-#include "hal.h"
 
 const tflite::MicroOpResolver& arm::app::Wav2LetterModel::GetOpResolver()
 {
diff --git a/source/use_case/asr/src/Wav2LetterPostprocess.cc b/source/use_case/asr/src/Wav2LetterPostprocess.cc
index fd11eef..0392061 100644
--- a/source/use_case/asr/src/Wav2LetterPostprocess.cc
+++ b/source/use_case/asr/src/Wav2LetterPostprocess.cc
@@ -15,9 +15,8 @@
  * limitations under the License.
  */
 #include "Wav2LetterPostprocess.hpp"
-
 #include "Wav2LetterModel.hpp"
-
+#include "log_macros.h"
 
 namespace arm {
 namespace app {