diff --git a/raw/iw4/techsets/distortion_scale.techset.template b/raw/iw4/techsets/distortion_scale.techset.template
index 800156be..e01c3822 100644
--- a/raw/iw4/techsets/distortion_scale.techset.template
+++ b/raw/iw4/techsets/distortion_scale.techset.template
@@ -3,26 +3,14 @@
 
 #pragma options MATERIAL_TYPE (default, world, world_vertcol)
 
-#ifdef UV_ANIM
-    #define FILENAME_UV "_ua"
-#else
-    #define FILENAME_UV ""
-#endif
-
-#ifdef ZFEATHER
-    #define FILENAME_ZFEATHER "_zfeather"
-#else
-    #define FILENAME_ZFEATHER ""
-#endif
-
 #if MATERIAL_TYPE == "world"
-    #define FILENAME_MATERIAL_TYPE "w_"
+    #define MATERIAL_TYPE_PREFIX "w_"
     #define MATERIAL_TYPE_SUFFIX "_nc"
 #elif MATERIAL_TYPE == "world_vertcol"
-    #define FILENAME_MATERIAL_TYPE "wc_"
+    #define MATERIAL_TYPE_PREFIX "wc_"
     #define MATERIAL_TYPE_SUFFIX ""
 #else
-    #define FILENAME_MATERIAL_TYPE ""
+    #define MATERIAL_TYPE_PREFIX ""
     #define MATERIAL_TYPE_SUFFIX "_dtex"
 #endif
 
@@ -38,7 +26,7 @@
     #define UV_ANIM_SUFFIX ""
 #endif
 
-#pragma filename FILENAME_MATERIAL_TYPE + "distortion_scale" + FILENAME_UV + FILENAME_ZFEATHER + ".techset"
+#pragma filename MATERIAL_TYPE_PREFIX + "distortion_scale" + UV_ANIM_SUFFIX + ZFEATHER_SUFFIX + ".techset"
 
 #set EMISSIVE_TECHNIQUE "distortion_scale" + UV_ANIM_SUFFIX + ZFEATHER_SUFFIX + MATERIAL_TYPE_SUFFIX
 #set WIREFRAME_TECHNIQUE "wireframe_solid" + MATERIAL_TYPE_SUFFIX