diff --git a/extras/conf/SRB2-22.cfg b/extras/conf/SRB2-22.cfg
index 246ef9b64ba5022326b0881e157ee2bbaf14a675..a8217754dee0ac228f0d9c30953886665eed6e37 100644
--- a/extras/conf/SRB2-22.cfg
+++ b/extras/conf/SRB2-22.cfg
@@ -3110,7 +3110,7 @@ linedeftypes
 		733
 		{
 			title = "Copy Backside Floor Slope to Frontside";
-			prefix = "(730)";
+			prefix = "(733)";
 			slope = "copy";
 			copyslopeargs = 2;
 		}
@@ -3118,7 +3118,7 @@ linedeftypes
 		734
 		{
 			title = "Copy Backside Ceiling Slope to Frontside";
-			prefix = "(731)";
+			prefix = "(734)";
 			slope = "copy";
 			copyslopeargs = 8;
 		}
@@ -3126,7 +3126,7 @@ linedeftypes
 		735
 		{
 			title = "Copy Backside Floor and Ceiling Slope to Frontside";
-			prefix = "(732)";
+			prefix = "(735)";
 			slope = "copy";
 			copyslopeargs = 10;
 		}