diff --git a/src/debug.h b/src/debug.h
index 28a3cc88eb..6279ba8166 100644
--- a/src/debug.h
+++ b/src/debug.h
@@ -128,9 +128,14 @@ std::string GetDebugString();
 }
 
 
-void ShowInfo(const char *str);
+void ShowInfoI(const char *str);
 void CDECL ShowInfoF(const char *str, ...) WARN_FORMAT(1, 2);
 
+inline void ShowInfoI(const std::string &str)
+{
+	ShowInfoI(str.c_str());
+}
+
 struct log_prefix {
 	const char *GetLogPrefix();
 
diff --git a/src/debug_fmt.h b/src/debug_fmt.h
index 5ad25d559f..d4d4851c17 100644
--- a/src/debug_fmt.h
+++ b/src/debug_fmt.h
@@ -13,6 +13,8 @@
 #include "debug.h"
 #include "core/format.hpp"
 
+#define ShowInfo(format_string, ...) ShowInfoI(fmt::format(FMT_STRING(format_string), ## __VA_ARGS__))
+
 /**
  * Ouptut a line of debugging information.
  * @param name The category of debug information.
diff --git a/src/openttd.cpp b/src/openttd.cpp
index 70b79b3522..8d46d260ff 100644
--- a/src/openttd.cpp
+++ b/src/openttd.cpp
@@ -259,7 +259,7 @@ void CDECL ShowInfoF(const char *str, ...)
 	va_start(va, str);
 	vseprintf(buf, lastof(buf), str, va);
 	va_end(va);
-	ShowInfo(buf);
+	ShowInfoI(buf);
 }
 
 /**
@@ -343,7 +343,7 @@ static void ShowHelp()
 #if !defined(_WIN32)
 	printf("%s\n", buf);
 #else
-	ShowInfo(buf);
+	ShowInfoI(buf);
 #endif
 }
 
@@ -402,7 +402,7 @@ static void WriteSavegameInfo(const char *name)
 #if !defined(_WIN32)
 	printf("%s\n", buf);
 #else
-	ShowInfo(buf);
+	ShowInfoI(buf);
 #endif
 }
 
@@ -445,7 +445,7 @@ static void WriteSavegameDebugData(const char *name)
 #if !defined(_WIN32)
 	printf("%s\n", buf);
 #else
-	ShowInfo(buf);
+	ShowInfoI(buf);
 #endif
 	free(buf);
 }
@@ -805,7 +805,7 @@ int openttd_main(int argc, char *argv[])
 			videodriver = "dedicated";
 			blitter = "null";
 			dedicated = true;
-			SetDebugString("net=3", ShowInfo);
+			SetDebugString("net=3", ShowInfoI);
 			if (mgo.opt != nullptr) {
 				scanner->dedicated_host = ParseFullConnectionString(mgo.opt, scanner->dedicated_port);
 			}
@@ -829,7 +829,7 @@ int openttd_main(int argc, char *argv[])
 #if defined(_WIN32)
 				CreateConsole();
 #endif
-				if (mgo.opt != nullptr) SetDebugString(mgo.opt, ShowInfo);
+				if (mgo.opt != nullptr) SetDebugString(mgo.opt, ShowInfoI);
 				break;
 			}
 		case 'e': _switch_mode = (_switch_mode == SM_LOAD_GAME || _switch_mode == SM_LOAD_SCENARIO ? SM_LOAD_SCENARIO : SM_EDITOR); break;
diff --git a/src/os/unix/unix.cpp b/src/os/unix/unix.cpp
index 291c57507a..c27a97a082 100644
--- a/src/os/unix/unix.cpp
+++ b/src/os/unix/unix.cpp
@@ -202,7 +202,7 @@ std::string FS2OTTD(const std::string &name)
 
 #endif /* WITH_ICONV */
 
-void ShowInfo(const char *str)
+void ShowInfoI(const char *str)
 {
 	fprintf(stderr, "%s\n", str);
 }
diff --git a/src/os/windows/win32.cpp b/src/os/windows/win32.cpp
index d20f4c267f..fd9a12c94a 100644
--- a/src/os/windows/win32.cpp
+++ b/src/os/windows/win32.cpp
@@ -274,7 +274,7 @@ void CreateConsole()
 		_close(fd);
 		CloseHandle(hand);
 
-		ShowInfo("Unable to open an output handle to the console. Check known-bugs.txt for details.");
+		ShowInfoI("Unable to open an output handle to the console. Check known-bugs.txt for details.");
 		return;
 	}
 
@@ -339,7 +339,7 @@ static INT_PTR CALLBACK HelpDialogFunc(HWND wnd, UINT msg, WPARAM wParam, LPARAM
 	return FALSE;
 }
 
-void ShowInfo(const char *str)
+void ShowInfoI(const char *str)
 {
 	if (_has_console) {
 		fprintf(stderr, "%s\n", str);
diff --git a/src/saveload/afterload.cpp b/src/saveload/afterload.cpp
index afa607531a..f5551451d5 100644
--- a/src/saveload/afterload.cpp
+++ b/src/saveload/afterload.cpp
@@ -471,7 +471,7 @@ static void CDECL HandleSavegameLoadCrash(int signum)
 			"Please file a bug report and attach this savegame.\n");
 	}
 
-	ShowInfo(buffer);
+	ShowInfoI(buffer);
 
 #ifdef WITH_SIGACTION
 	struct sigaction call;