diff --git a/cpp/core/src/zxing/aztec/decoder/Decoder.cpp b/cpp/core/src/zxing/aztec/decoder/Decoder.cpp
index 09b2fe9bd..2f2b3aba9 100644
--- a/cpp/core/src/zxing/aztec/decoder/Decoder.cpp
+++ b/cpp/core/src/zxing/aztec/decoder/Decoder.cpp
@@ -38,7 +38,7 @@ using zxing::Ref;
 using std::string;
 
 namespace {
-  void add(string& result, uint8_t character) {
+  void add(string& result, unsigned char character) {
     char s[] = { character & 0xff };
     char* ss = s;
     size_t sl = sizeof(s);
diff --git a/cpp/core/src/zxing/aztec/decoder/Decoder.h b/cpp/core/src/zxing/aztec/decoder/Decoder.h
index a6f8d936c..e29801c69 100644
--- a/cpp/core/src/zxing/aztec/decoder/Decoder.h
+++ b/cpp/core/src/zxing/aztec/decoder/Decoder.h
@@ -21,7 +21,7 @@
 
 #include <zxing/common/DecoderResult.h>
 #include <zxing/common/BitMatrix.h>
-#include <zxing/common/str.h>
+#include <zxing/common/Str.h>
 #include <zxing/aztec/AztecDetectorResult.h>
 
 namespace zxing {
diff --git a/cpp/core/src/zxing/aztec/detector/Detector.cpp b/cpp/core/src/zxing/aztec/detector/Detector.cpp
index 92bb55f5d..8d51ff773 100644
--- a/cpp/core/src/zxing/aztec/detector/Detector.cpp
+++ b/cpp/core/src/zxing/aztec/detector/Detector.cpp
@@ -380,19 +380,6 @@ Ref<BitMatrix> Detector::sampleGrid(Ref<zxing::BitMatrix> image,
 }
         
 void Detector::getParameters(Ref<zxing::BitArray> parameterData) {
-            
-  if (false) {
-    printf("getting parameters from: ");
-    for (int i = 0; i < (int)parameterData->getSize(); i++) {
-      if (parameterData->get(i)) {
-        printf("1");
-      } else {
-        printf("0");
-      }
-    }
-    printf("\n");
-  }
-            
   nbLayers_ = 0;
   nbDataBlocks_ = 0;