diff --git a/specs/udmf_zdoom.txt b/specs/udmf_zdoom.txt
index 87b7797ab..8218feeb1 100644
--- a/specs/udmf_zdoom.txt
+++ b/specs/udmf_zdoom.txt
@@ -212,7 +212,7 @@ Note: All <bool> fields default to false unless mentioned otherwise.
 	  uppercolor_bottom = <int>;    // Material color of the top of the lower tier.
 	  lowercolor_bottom = <int>;    // Material color of the bottom of the lower tier. (Hardware rendering only.)
 
-            useowncoloradd_top = <bool>;  // Controls where the advanced colorization properties are taken from.
+      useowncoloradd_top = <bool>;  // Controls where the advanced colorization properties are taken from.
       useowncoloradd_mid = <bool>;  // 0: From the containing sector, 1: from the given part of the linedef itself
       useowncoloradd_bottom = <bool>;  // Default for all 3 is 0.
       coloradd_top = <int>;         // Additive material color to apply to top section of sidedef. Default is black (0x000000)