diff --git a/src/posix/cocoa/i_video.mm b/src/posix/cocoa/i_video.mm
index 90f41f8ee..81b14e3cd 100644
--- a/src/posix/cocoa/i_video.mm
+++ b/src/posix/cocoa/i_video.mm
@@ -152,7 +152,7 @@ namespace
 {
 	if (nil == m_title)
 	{
-		m_title = [NSString stringWithFormat:@"%s %s", GAMESIG, GetVersionString()];
+		m_title = [NSString stringWithFormat:@"%s %s", GAMENAME, GetVersionString()];
 	}
 
 	[super setTitle:m_title];
diff --git a/src/posix/cocoa/st_console.mm b/src/posix/cocoa/st_console.mm
index 93d0a1320..85ac57409 100644
--- a/src/posix/cocoa/st_console.mm
+++ b/src/posix/cocoa/st_console.mm
@@ -101,7 +101,7 @@ FConsoleWindow::FConsoleWindow()
 	[m_scrollView setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
 	[m_scrollView setDocumentView:m_textView];
 
-	NSString* const title = [NSString stringWithFormat:@"%s %s - Console", GAMESIG, GetVersionString()];
+	NSString* const title = [NSString stringWithFormat:@"%s %s - Console", GAMENAME, GetVersionString()];
 
 	[m_window initWithContentRect:initialRect
 						styleMask:NSTitledWindowMask | NSClosableWindowMask | NSResizableWindowMask
diff --git a/src/posix/sdl/i_system.cpp b/src/posix/sdl/i_system.cpp
index 149ae06c0..f5ba03c2a 100644
--- a/src/posix/sdl/i_system.cpp
+++ b/src/posix/sdl/i_system.cpp
@@ -117,7 +117,7 @@ void Linux_I_FatalError(const char* errortext)
 	if((str=getenv("KDE_FULL_SESSION")) && strcmp(str, "true") == 0)
 	{
 		FString cmd;
-		cmd << "kdialog --title \"" GAMESIG " " << GetVersionString()
+		cmd << "kdialog --title \"" GAMENAME " " << GetVersionString()
 			<< "\" --msgbox \"" << errortext << "\"";
 		popen(cmd, "r");
 	}
@@ -130,7 +130,7 @@ void Linux_I_FatalError(const char* errortext)
 	else
 	{
 		FString title;
-		title << GAMESIG " " << GetVersionString();
+		title << GAMENAME " " << GetVersionString();
 
 		if (SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, title, errortext, NULL) < 0)
 		{
@@ -200,7 +200,7 @@ int I_PickIWad (WadStuff *wads, int numwads, bool showwin, int defaultiwad)
 	const char *str;
 	if((str=getenv("KDE_FULL_SESSION")) && strcmp(str, "true") == 0)
 	{
-		FString cmd("kdialog --title \"" GAMESIG " ");
+		FString cmd("kdialog --title \"" GAMENAME " ");
 		cmd << GetVersionString() << ": Select an IWAD to use\""
 					" --menu \"" GAMENAME " found more than one IWAD\n"
 					"Select from the list below to determine which one to use:\"";
diff --git a/src/posix/sdl/sdlglvideo.cpp b/src/posix/sdl/sdlglvideo.cpp
index 5cfc08e8a..b8738ed0d 100644
--- a/src/posix/sdl/sdlglvideo.cpp
+++ b/src/posix/sdl/sdlglvideo.cpp
@@ -165,7 +165,7 @@ namespace Priv
 		}
 
 		FString caption;
-		caption.Format(GAMESIG " %s (%s)", GetVersionString(), GetGitTime());
+		caption.Format(GAMENAME " %s (%s)", GetVersionString(), GetGitTime());
 
 		const uint32_t windowFlags = (win_maximized ? SDL_WINDOW_MAXIMIZED : 0) | SDL_WINDOW_RESIZABLE | extraFlags;
 		Priv::window = SDL_CreateWindow(caption,
@@ -771,7 +771,7 @@ void I_SetWindowTitle(const char* caption)
 	else
 	{
 		FString default_caption;
-		default_caption.Format(GAMESIG " %s (%s)", GetVersionString(), GetGitTime());
+		default_caption.Format(GAMENAME " %s (%s)", GetVersionString(), GetGitTime());
 		SDL_SetWindowTitle(Priv::window, default_caption);
 	}
 }
diff --git a/src/posix/unix/gtk_dialogs.cpp b/src/posix/unix/gtk_dialogs.cpp
index 697d5a721..2475035a9 100644
--- a/src/posix/unix/gtk_dialogs.cpp
+++ b/src/posix/unix/gtk_dialogs.cpp
@@ -207,7 +207,7 @@ static int PickIWad (WadStuff *wads, int numwads, bool showwin, int defaultiwad)
 
 	// Create the dialog window.
 	window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-	mysnprintf(caption, countof(caption), GAMESIG " %s: Select an IWAD to use", GetVersionString());
+	mysnprintf(caption, countof(caption), GAMENAME " %s: Select an IWAD to use", GetVersionString());
 	gtk_window_set_title (GTK_WINDOW(window), caption);
 	gtk_window_set_position (GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 	gtk_window_set_gravity (GTK_WINDOW(window), GDK_GRAVITY_CENTER);
diff --git a/src/win32/i_main.cpp b/src/win32/i_main.cpp
index 59ed03475..254dc1bc8 100644
--- a/src/win32/i_main.cpp
+++ b/src/win32/i_main.cpp
@@ -896,7 +896,7 @@ int DoMain (HINSTANCE hInstance)
 	}
 	
 	/* create window */
-	FStringf caption("" GAMESIG " %s " X64 " (%s)", GetVersionString(), GetGitTime());
+	FStringf caption("" GAMENAME " %s " X64 " (%s)", GetVersionString(), GetGitTime());
 	std::wstring wcaption = caption.WideString();
 	Window = CreateWindowExW(
 							 WS_EX_APPWINDOW,
diff --git a/src/win32/i_system.cpp b/src/win32/i_system.cpp
index 072b4a5a9..8d78b25ba 100644
--- a/src/win32/i_system.cpp
+++ b/src/win32/i_system.cpp
@@ -578,7 +578,7 @@ BOOL CALLBACK IWADBoxCallback(HWND hDlg, UINT message, WPARAM wParam, LPARAM lPa
 
 			GetWindowTextW(hDlg, label, countof(label));
 			FString alabel(label);
-			newlabel.Format(GAMESIG " %s: %s", GetVersionString(), alabel.GetChars());
+			newlabel.Format(GAMENAME " %s: %s", GetVersionString(), alabel.GetChars());
 			auto wlabel = newlabel.WideString();
 			SetWindowTextW(hDlg, wlabel.c_str());
 		}