diff --git a/src/textures/hires/hqresize.cpp b/src/textures/hires/hqresize.cpp
index 6bcb2d8053..01f310ed2f 100644
--- a/src/textures/hires/hqresize.cpp
+++ b/src/textures/hires/hqresize.cpp
@@ -47,7 +47,7 @@
 
 CUSTOM_CVAR(Int, gl_texture_hqresize, 0, CVAR_ARCHIVE | CVAR_GLOBALCONFIG | CVAR_NOINITCALL)
 {
-	if (self < 0 || self > 22)
+	if (self < 0 || self > 24)
 	{
 		self = 0;
 	}
@@ -439,6 +439,10 @@ unsigned char *FTexture::CreateUpsampledTextureBuffer (unsigned char *inputBuffe
 			return normalNxHelper( &normalNx, 3, inputBuffer, inWidth, inHeight, outWidth, outHeight );
 		case 22:
 			return normalNxHelper( &normalNx, 4, inputBuffer, inWidth, inHeight, outWidth, outHeight );
+		case 23:
+			return normalNxHelper( &normalNx, 5, inputBuffer, inWidth, inHeight, outWidth, outHeight );
+		case 24:
+			return normalNxHelper( &normalNx, 6, inputBuffer, inWidth, inHeight, outWidth, outHeight );
 		}
 	}
 	return inputBuffer;
diff --git a/wadsrc/static/language.enu b/wadsrc/static/language.enu
index 4f5e1dd134..6ce6fcf23e 100644
--- a/wadsrc/static/language.enu
+++ b/wadsrc/static/language.enu
@@ -2881,6 +2881,8 @@ OPTVAL_SCALE4X 				= "Scale4x";
 OPTVAL_NORMAL2X				= "Normal2x";
 OPTVAL_NORMAL3X				= "Normal3x";
 OPTVAL_NORMAL4X				= "Normal4x";
+OPTVAL_NORMAL5X				= "Normal5x";
+OPTVAL_NORMAL6X				= "Normal6x";
 OPTVAL_HQ2X 				= "hq2x";
 OPTVAL_HQ3X 				= "hq3x";
 OPTVAL_HQ4X 				= "hq4x";
diff --git a/wadsrc/static/menudef.txt b/wadsrc/static/menudef.txt
index a40c8b2df2..f210af4777 100644
--- a/wadsrc/static/menudef.txt
+++ b/wadsrc/static/menudef.txt
@@ -2188,6 +2188,8 @@ OptionValue "HqResizeModes"
    20, "$OPTVAL_NORMAL2X"
    21, "$OPTVAL_NORMAL3X"
    22, "$OPTVAL_NORMAL4X"
+   23, "$OPTVAL_NORMAL5X"
+   24, "$OPTVAL_NORMAL6X"
 }
 
 OptionValue "HqResizeModesNoMMX"
diff --git a/wadsrc/static/zscript/menu/optionmenu.txt b/wadsrc/static/zscript/menu/optionmenu.txt
index ede7c02178..3e18537350 100644
--- a/wadsrc/static/zscript/menu/optionmenu.txt
+++ b/wadsrc/static/zscript/menu/optionmenu.txt
@@ -595,10 +595,12 @@ class GLTextureGLOptions : OptionMenu
 					break;
 				case 16:
 				case 18:
+				case 23:
 					multiplier = 25;
 					break;
 				case 17:
 				case 19:
+				case 24:
 					multiplier = 36;
 					break;
 				}