diff --git a/src/encoder/symbols.c b/src/encoder/symbols.c
index c7f27b2..29f5330 100644
--- a/src/encoder/symbols.c
+++ b/src/encoder/symbols.c
@@ -7,11 +7,11 @@
 constexpr size_t symbol_table_default_cap = 64;
 constexpr size_t symbol_table_max_cap = 1 << 16;
 
-error_t *err_symbol_table_invalid_node = &(error_t){
+error_t *const err_symbol_table_invalid_node = &(error_t){
     .message = "Unexpected node id when adding symbol to symbol table"};
-error_t *err_symbol_table_max_cap = &(error_t){
+error_t *const err_symbol_table_max_cap = &(error_t){
     .message = "Failed to increase symbol table length, max capacity reached"};
-error_t *err_symbol_table_incompatible_symbols =
+error_t *const err_symbol_table_incompatible_symbols =
     &(error_t){.message = "Failed to update symbol with incompatible kind"};
 
 error_t *symbol_table_alloc(symbol_table_t **output) {
diff --git a/src/encoder/symbols.h b/src/encoder/symbols.h
index 344d601..9c4e7f7 100644
--- a/src/encoder/symbols.h
+++ b/src/encoder/symbols.h
@@ -3,6 +3,10 @@
 
 #include "../ast.h"
 
+extern error_t *const err_symbol_table_invalid_node;
+extern error_t *const err_symbol_table_max_cap;
+extern error_t *const err_symbol_table_incompatible_symbols;
+
 typedef enum symbol_kind {
     SYMBOL_REFERENCE,
     SYMBOL_LOCAL,