diff --git a/bindings/c/test/apitester/TesterWorkload.cpp b/bindings/c/test/apitester/TesterWorkload.cpp
index 27eac6b2c7..47bc87e67e 100644
--- a/bindings/c/test/apitester/TesterWorkload.cpp
+++ b/bindings/c/test/apitester/TesterWorkload.cpp
@@ -172,7 +172,7 @@ void WorkloadBase::error(const std::string& msg) {
 	fmt::print(stderr, "[{}] ERROR: {}\n", workloadId, msg);
 	numErrors++;
 	if (numErrors > maxErrors && !failed) {
-		fmt::print(stderr, "[{}] ERROR: Stopping workload after {} errors\n", workloadId, numErrors);
+		fmt::print(stderr, "[{}] ERROR: Stopping workload after {} errors\n", workloadId, numErrors.load());
 		failed = true;
 	}
 }
diff --git a/bindings/c/test/mako/mako.cpp b/bindings/c/test/mako/mako.cpp
index 09c38d0bdc..52cd772b9b 100644
--- a/bindings/c/test/mako/mako.cpp
+++ b/bindings/c/test/mako/mako.cpp
@@ -2378,7 +2378,7 @@ int statsProcessMain(Arguments const& args,
 		fmt::fprintf(fp, "\"txntrace\": %d,", args.txntrace);
 		fmt::fprintf(fp, "\"txntagging\": %d,", args.txntagging);
 		fmt::fprintf(fp, "\"txntagging_prefix\": \"%s\",", args.txntagging_prefix);
-		fmt::fprintf(fp, "\"streaming_mode\": %d,", args.streaming_mode);
+		fmt::fprintf(fp, "\"streaming_mode\": %d,", static_cast<int>(args.streaming_mode));
 		fmt::fprintf(fp, "\"disable_ryw\": %d,", args.disable_ryw);
 		fmt::fprintf(fp, "\"transaction_timeout_db\": %d,", args.transaction_timeout_db);
 		fmt::fprintf(fp, "\"transaction_timeout_tx\": %d,", args.transaction_timeout_tx);
diff --git a/fdbclient/SpecialKeySpace.actor.cpp b/fdbclient/SpecialKeySpace.actor.cpp
index 98eb99c701..513710c253 100644
--- a/fdbclient/SpecialKeySpace.actor.cpp
+++ b/fdbclient/SpecialKeySpace.actor.cpp
@@ -3025,7 +3025,7 @@ ACTOR Future<Void> validateSpecialSubrangeRead(ReadYourWritesTransaction* ryw,
 	// Test
 	RangeResult testResult = wait(ryw->getRange(testBegin, testEnd, limits, Snapshot::True, reverse));
 	if (testResult != expectedResult) {
-		fmt::print("Reverse: {}\n", reverse);
+		fmt::print("Reverse: {}\n", static_cast<bool>(reverse));
 		fmt::print("Original range: [{}, {})\n", begin.toString(), end.toString());
 		fmt::print("Original result:\n");
 		for (const auto& kr : result) {
diff --git a/fdbserver/BlobWorker.actor.cpp b/fdbserver/BlobWorker.actor.cpp
index cac7480826..df8cb688ea 100644
--- a/fdbserver/BlobWorker.actor.cpp
+++ b/fdbserver/BlobWorker.actor.cpp
@@ -585,8 +585,8 @@ ACTOR Future<Void> updateGranuleSplitState(Transaction* tr,
 			fmt::print("Updating granule {0} split state from {1} {2} -> {3}\n",
 			           currentGranuleID.toString(),
 			           parentGranuleID.toString(),
-			           currentState,
-			           newState);
+			           static_cast<int>(currentState),
+			           static_cast<int>(newState));
 		}
 
 		Key myStateKey = blobGranuleSplitKeyFor(parentGranuleID, currentGranuleID);
@@ -631,8 +631,8 @@ ACTOR Future<Void> updateGranuleSplitState(Transaction* tr,
 		fmt::print("Ignoring granule {0} split state from {1} {2} -> {3}\n",
 		           currentGranuleID.toString(),
 		           parentGranuleID.toString(),
-		           currentState,
-		           newState);
+		           static_cast<int>(currentState),
+		           static_cast<int>(newState));
 	}
 
 	return Void();
@@ -5442,7 +5442,7 @@ ACTOR Future<Void> blobWorkerCore(BlobWorkerInterface bwInterf, Reference<BlobWo
 					           assignReq.keyRange.end.printable(),
 					           assignReq.managerEpoch,
 					           assignReq.managerSeqno,
-					           assignReq.type);
+					           static_cast<int>(assignReq.type));
 				}
 
 				if (self->managerEpochOk(assignReq.managerEpoch)) {
diff --git a/fdbserver/storageserver.actor.cpp b/fdbserver/storageserver.actor.cpp
index 4e874fb69c..2bc155a510 100644
--- a/fdbserver/storageserver.actor.cpp
+++ b/fdbserver/storageserver.actor.cpp
@@ -3639,7 +3639,7 @@ ACTOR Future<std::pair<ChangeFeedStreamReply, bool>> getChangeFeedMutations(Stor
 			           req.rangeID.printable().substr(0, 6),
 			           req.id.toString().substr(0, 8),
 			           foundVersion ? "key" : "version",
-			           DEBUG_CF_MISSING_VERSION,
+			           static_cast<int64_t>(DEBUG_CF_MISSING_VERSION),
 			           req.range.begin.printable(),
 			           req.range.end.printable(),
 			           req.begin,
@@ -3659,7 +3659,7 @@ ACTOR Future<std::pair<ChangeFeedStreamReply, bool>> getChangeFeedMutations(Stor
 			           data->thisServerID.toString().substr(0, 4),
 			           req.rangeID.printable().substr(0, 6),
 			           req.id.toString().substr(0, 8),
-			           DEBUG_CF_MISSING_VERSION,
+			           static_cast<int64_t>(DEBUG_CF_MISSING_VERSION),
 			           req.range.begin.printable(),
 			           req.range.end.printable(),
 			           req.begin,
diff --git a/flow/MkCertCli.cpp b/flow/MkCertCli.cpp
index 028baad0b6..e7b592ca82 100644
--- a/flow/MkCertCli.cpp
+++ b/flow/MkCertCli.cpp
@@ -216,7 +216,8 @@ int main(int argc, char** argv) {
 				fmt::print(stderr, "ERROR: unknown option '{}'\n", args.OptionText());
 				return FDB_EXIT_ERROR;
 			default:
-				fmt::print(stderr, "ERROR: unknown error {} with option '{}'\n", err, args.OptionText());
+				fmt::print(
+				    stderr, "ERROR: unknown error {} with option '{}'\n", static_cast<int>(err), args.OptionText());
 				return FDB_EXIT_ERROR;
 			}
 		} else {