diff --git a/src/zscript/zcc-parse.lemon b/src/zscript/zcc-parse.lemon
index 3d0e40121..c42e0818b 100644
--- a/src/zscript/zcc-parse.lemon
+++ b/src/zscript/zcc-parse.lemon
@@ -262,6 +262,7 @@ struct_body(X) ::= struct_member(A) struct_body(B).		{ X = A; A->AppendSibling(B
 
 struct_member(X) ::= declarator_no_fun(A).				{ X = A; }
 struct_member(X) ::= enum_def(A).						{ X = A; }
+struct_member(X) ::= const_def(A).						{ X = A; }
 
 /*----- Constant Definition ------*/
 /* Like UnrealScript, a constant's type is implied by its value's type. */