diff --git a/src/d_iwad.cpp b/src/d_iwad.cpp
index 68020dcec..1fc63e03d 100644
--- a/src/d_iwad.cpp
+++ b/src/d_iwad.cpp
@@ -381,13 +381,15 @@ int FIWadManager::CheckIWAD (const char *doomwaddir, WadStuff *wads)
 //
 //==========================================================================
 
+static bool havepicked = false;
+
 int FIWadManager::IdentifyVersion (TArray<FString> &wadfiles, const char *iwad, const char *zdoom_wad)
 {
 	TArray<WadStuff> wads;
 	TArray<size_t> foundwads;
 	const char *iwadparm = Args->CheckValue ("-iwad");
-	size_t numwads;
 	int pickwad;
+	size_t numwads;
 	size_t i;
 	bool iwadparmfound = false;
 	FString custwad;
@@ -536,26 +538,29 @@ int FIWadManager::IdentifyVersion (TArray<FString> &wadfiles, const char *iwad,
 		{
 			for (i = 0; i < numwads; ++i)
 			{
-				FString basename = ExtractFileBase (wads[i].Path);
-				if (stricmp (basename, defaultiwad) == 0)
+				FString basename = ExtractFileBase(wads[i].Path);
+				if (stricmp(basename, defaultiwad) == 0)
 				{
 					defiwad = (int)i;
 					break;
 				}
 			}
 		}
-		pickwad = I_PickIWad (&wads[0], (int)numwads, queryiwad, defiwad);
-		if (pickwad >= 0)
+		if (!havepicked)	// just use the first IWAD if the restart doesn't have a -iwad parameter. We cannot open the picker in fullscreen mode.
 		{
-			// The newly selected IWAD becomes the new default
-			FString basename = ExtractFileBase (wads[pickwad].Path);
-			defaultiwad = basename;
+			pickwad = I_PickIWad(&wads[0], (int)numwads, queryiwad, defiwad);
+			if (pickwad >= 0)
+			{
+				// The newly selected IWAD becomes the new default
+				FString basename = ExtractFileBase(wads[pickwad].Path);
+				defaultiwad = basename;
+			}
+			if (pickwad < 0)
+				exit(0);
+			havepicked = true;
 		}
 	}
 
-	if (pickwad < 0)
-		exit (0);
-
 	// zdoom.pk3 must always be the first file loaded and the IWAD second.
 	wadfiles.Clear();
 	D_AddFile (wadfiles, zdoom_wad);