diff --git a/src/crypto/range_proof_bpp.h b/src/crypto/range_proof_bpp.h
index 2bb2e4ba..fb85def3 100644
--- a/src/crypto/range_proof_bpp.h
+++ b/src/crypto/range_proof_bpp.h
@@ -27,7 +27,7 @@ namespace crypto
 #define DBG_PRINT(x)     (void(0)) //*/ std::cout << x << ENDL
 
 #define CHECK_AND_FAIL_WITH_ERROR_IF_FALSE(cond, err_code) \
-  if (!(cond)) { LOG_PRINT_RED("bpp_gen: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << err_code, LOG_LEVEL_3); \
+  if (!(cond)) { LOG_PRINT_RED("bpp_gen: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << (int)err_code, LOG_LEVEL_3); \
   if (p_err) { *p_err = err_code; } return false; }
 
 
@@ -355,7 +355,7 @@ namespace crypto
   bool bpp_verify(const std::vector<bpp_sig_commit_ref_t>& sigs, uint8_t* p_err = nullptr)
   {
 #define CHECK_AND_FAIL_WITH_ERROR_IF_FALSE(cond, err_code) \
-    if (!(cond)) { LOG_PRINT_RED("bpp_verify: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << err_code, LOG_LEVEL_3); \
+    if (!(cond)) { LOG_PRINT_RED("bpp_verify: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << (int)err_code, LOG_LEVEL_3); \
     if (p_err) { *p_err = err_code; } return false; }
 
     DBG_PRINT(ENDL << " . . . . bpp_verify() . . . . ");
diff --git a/src/crypto/range_proof_bppe.h b/src/crypto/range_proof_bppe.h
index 82d1af40..3b2158d0 100644
--- a/src/crypto/range_proof_bppe.h
+++ b/src/crypto/range_proof_bppe.h
@@ -28,7 +28,7 @@ namespace crypto
 #define DBG_PRINT(x)     (void(0)) // std::cout << x << ENDL
 
 #define CHECK_AND_FAIL_WITH_ERROR_IF_FALSE(cond, err_code) \
-    if (!(cond)) { LOG_PRINT_RED("bppe_gen: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << err_code, LOG_LEVEL_3); \
+    if (!(cond)) { LOG_PRINT_RED("bppe_gen: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << (int)err_code, LOG_LEVEL_3); \
     if (p_err) { *p_err = err_code; } return false; }
 
 
@@ -366,7 +366,7 @@ namespace crypto
   bool bppe_verify(const std::vector<bppe_sig_commit_ref_t>& sigs, uint8_t* p_err = nullptr)
   {
 #define CHECK_AND_FAIL_WITH_ERROR_IF_FALSE(cond, err_code) \
-    if (!(cond)) { LOG_PRINT_RED("bppe_verify: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << err_code, LOG_LEVEL_3); \
+    if (!(cond)) { LOG_PRINT_RED("bppe_verify: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << (int)err_code, LOG_LEVEL_3); \
     if (p_err) { *p_err = err_code; } return false; }
 
     DBG_PRINT(ENDL << " . . . . bppe_verify() . . . . ");
diff --git a/src/crypto/zarcanum.cpp b/src/crypto/zarcanum.cpp
index c1f58a9a..f9619b52 100644
--- a/src/crypto/zarcanum.cpp
+++ b/src/crypto/zarcanum.cpp
@@ -43,7 +43,7 @@ namespace crypto
   }
 
   #define CHECK_AND_FAIL_WITH_ERROR_IF_FALSE(cond, err_code) \
-    if (!(cond)) { LOG_PRINT_RED("zarcanum_generate_proof: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << err_code, LOG_LEVEL_3); \
+    if (!(cond)) { LOG_PRINT_RED("zarcanum_generate_proof: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << (int)err_code, LOG_LEVEL_3); \
     if (p_err) { *p_err = err_code; } return false; }
   
   bool zarcanum_generate_proof(const hash& m, const hash& kernel_hash, const std::vector<CLSAG_GGXG_input_ref_t>& ring,
@@ -160,7 +160,7 @@ namespace crypto
 
 
   #define CHECK_AND_FAIL_WITH_ERROR_IF_FALSE(cond, err_code) \
-    if (!(cond)) { LOG_PRINT_RED("zarcanum_verify_proof: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << err_code, LOG_LEVEL_3); \
+    if (!(cond)) { LOG_PRINT_RED("zarcanum_verify_proof: \"" << #cond << "\" is false at " << LOCATION_SS << ENDL << "error code = " << (int)err_code, LOG_LEVEL_3); \
     if (p_err) { *p_err = err_code; } return false; }
 
   bool zarcanum_verify_proof(const hash& m, const hash& kernel_hash, const std::vector<CLSAG_GGXG_input_ref_t>& ring,
diff --git a/src/currency_core/currency_format_utils.cpp b/src/currency_core/currency_format_utils.cpp
index ff566f7d..e59b846f 100644
--- a/src/currency_core/currency_format_utils.cpp
+++ b/src/currency_core/currency_format_utils.cpp
@@ -87,7 +87,7 @@ namespace currency
     result.outputs_count = outs_count;
     uint8_t err = 0;
     bool r = crypto::bpp_gen<>(amounts, blinding_masks, commitments_1div8, result.bpp, &err);
-    CHECK_AND_ASSERT_MES(r, false, "bpp_gen failed with error " << err);
+    CHECK_AND_ASSERT_MES(r, false, "bpp_gen failed with error " << (int)err);
 
     return true;
   }