diff --git a/src/dehacked.c b/src/dehacked.c
index 64a6242f..d6d76b53 100644
--- a/src/dehacked.c
+++ b/src/dehacked.c
@@ -3103,11 +3103,6 @@ static void readmaincfg(MYFILE *f)
 				if (creditscutscene > 128)
 					creditscutscene = 128;
 			}
-			else if (fastcmp(word, "DISABLESPEEDADJUST"))
-			{
-				DEH_WriteUndoline(word, va("%d", disableSpeedAdjust), UNDO_NONE);
-				disableSpeedAdjust = (value || word2[0] == 'T' || word2[0] == 'Y');
-			}
 			else if (fastcmp(word, "NUMDEMOS"))
 			{
 				DEH_WriteUndoline(word, va("%d", numDemos), UNDO_NONE);
diff --git a/src/doomstat.h b/src/doomstat.h
index 9ae2726d..9f021b64 100644
--- a/src/doomstat.h
+++ b/src/doomstat.h
@@ -57,7 +57,6 @@ extern boolean modifiedgame;
 extern boolean majormods;
 extern UINT16 mainwads;
 extern boolean savemoddata; // This mod saves time/emblem data.
-extern boolean disableSpeedAdjust; // Don't alter the duration of player states if true
 extern boolean imcontinuing; // Temporary flag while continuing
 extern boolean metalrecording;
 
diff --git a/src/g_game.c b/src/g_game.c
index 47f50e57..12544a8d 100644
--- a/src/g_game.c
+++ b/src/g_game.c
@@ -92,7 +92,6 @@ boolean majormods = false; // Set if Lua/Gameplay SOC/replacement map has been a
 boolean savemoddata = false;
 UINT8 paused;
 UINT8 modeattacking = ATTACKING_NONE;
-boolean disableSpeedAdjust = true;
 boolean imcontinuing = false;
 boolean runemeraldmanager = false;