diff --git a/code/compiler/13/definition.hpp b/code/compiler/13/definition.hpp
index 44828d3..a8a6ebc 100644
--- a/code/compiler/13/definition.hpp
+++ b/code/compiler/13/definition.hpp
@@ -7,6 +7,7 @@
 #include "llvm_context.hpp"
 #include "parsed_type.hpp"
 #include "type_env.hpp"
+#include "location.hh"
 #include "global_scope.hpp"
 
 struct ast;
@@ -27,6 +28,7 @@ struct definition_defn {
     std::string name;
     std::vector<std::string> params;
     ast_ptr body;
+    yy::location loc;
 
     type_env_ptr env;
     type_env_ptr var_env;
@@ -35,8 +37,12 @@ struct definition_defn {
     type_ptr full_type;
     type_ptr return_type;
 
-    definition_defn(std::string n, std::vector<std::string> p, ast_ptr b)
-        : name(std::move(n)), params(std::move(p)), body(std::move(b)) {
+    definition_defn(
+            std::string n,
+            std::vector<std::string> p,
+            ast_ptr b,
+            yy::location l = yy::location())
+        : name(std::move(n)), params(std::move(p)), body(std::move(b)), loc(std::move(l)) {
 
     }
 
@@ -53,14 +59,16 @@ struct definition_data {
     std::string name;
     std::vector<std::string> vars;
     std::vector<constructor_ptr> constructors;
+    yy::location loc;
 
     type_env_ptr env;
 
     definition_data(
             std::string n,
             std::vector<std::string> vs,
-            std::vector<constructor_ptr> cs)
-        : name(std::move(n)), vars(std::move(vs)), constructors(std::move(cs)) {}
+            std::vector<constructor_ptr> cs,
+            yy::location l = yy::location())
+        : name(std::move(n)), vars(std::move(vs)), constructors(std::move(cs)), loc(std::move(l)) {}
 
     void insert_types(type_env_ptr& env);
     void insert_constructors() const;
diff --git a/code/compiler/13/parser.y b/code/compiler/13/parser.y
index 3fefb28..93fabce 100644
--- a/code/compiler/13/parser.y
+++ b/code/compiler/13/parser.y
@@ -75,7 +75,7 @@ definitions
 defn
     : DEFN LID lowercaseParams EQUAL OCURLY aAdd CCURLY
         { $$ = definition_defn_ptr(
-            new definition_defn(std::move($2), std::move($3), std::move($6))); }
+            new definition_defn(std::move($2), std::move($3), std::move($6), @$)); }
     ;
 
 lowercaseParams
@@ -143,7 +143,7 @@ pattern
 
 data
     : DATA UID lowercaseParams EQUAL OCURLY constructors CCURLY
-        { $$ = definition_data_ptr(new definition_data(std::move($2), std::move($3), std::move($6))); }
+        { $$ = definition_data_ptr(new definition_data(std::move($2), std::move($3), std::move($6), @$)); }
     ;
 
 constructors