diff --git a/src/debug.cpp b/src/debug.cpp
--- a/src/debug.cpp
+++ b/src/debug.cpp
@@ -95,7 +95,7 @@ void DumpDebugFacilityNames(std::back_in
 		} else {
 			fmt::format_to(output_iterator, ", ");
 		}
-		fmt::format_to(output_iterator, i->name);
+		fmt::format_to(output_iterator, "{}", i->name);
 		written = true;
 	}
 	if (written) {
diff --git a/src/gamelog.cpp b/src/gamelog.cpp
--- a/src/gamelog.cpp
+++ b/src/gamelog.cpp
@@ -242,7 +242,11 @@ void Gamelog::Print(std::function<void(c
 {
 	/* A NewGRF got removed from the game, either manually or by it missing when loading the game. */
 	auto gm = grf_names.find(this->grfid);
-	fmt::format_to(output_iterator, action_type == GLAT_LOAD ? "Missing NewGRF: " : "Removed NewGRF: ");
+	if (action_type == GLAT_LOAD) {
+		fmt::format_to(output_iterator, "Missing NewGRF: ");
+	} else {
+		fmt::format_to(output_iterator, "Removed NewGRF: ");
+	}
 	AddGrfInfo(output_iterator, this->grfid, nullptr, gm != grf_names.end() ? gm->second.gc : nullptr);
 	if (gm == grf_names.end()) {
 		fmt::format_to(output_iterator, ". Gamelog inconsistency: GrfID was never added!");
diff --git a/src/network/core/address.cpp b/src/network/core/address.cpp
--- a/src/network/core/address.cpp
+++ b/src/network/core/address.cpp
@@ -93,7 +93,7 @@ static const char *GetAddressFormatStrin
  */
 std::string NetworkAddress::GetAddressAsString(bool with_family)
 {
-	return fmt::format(GetAddressFormatString(this->GetAddress()->ss_family, with_family), this->GetHostname(), this->GetPort());
+	return fmt::format(fmt::runtime(GetAddressFormatString(this->GetAddress()->ss_family, with_family)), this->GetHostname(), this->GetPort());
 }
 
 /**
diff --git a/src/newgrf_profiling.cpp b/src/newgrf_profiling.cpp
--- a/src/newgrf_profiling.cpp
+++ b/src/newgrf_profiling.cpp
@@ -131,7 +131,7 @@ void NewGRFProfiler::Abort()
  */
 std::string NewGRFProfiler::GetOutputFilename() const
 {
-	return fmt::format("{}grfprofile-{%Y%m%d-%H%M}-{:08X}.csv", FiosGetScreenshotDir(), fmt::localtime(time(nullptr)), BSWAP32(this->grffile->grfid));
+	return fmt::format("{}grfprofile-{:%Y%m%d-%H%M}-{:08X}.csv", FiosGetScreenshotDir(), fmt::localtime(time(nullptr)), BSWAP32(this->grffile->grfid));
 }
 
 /* static */ uint32_t NewGRFProfiler::FinishAll()