diff --git a/src/encoder/symbols.c b/src/encoder/symbols.c
index 413d259..be30f69 100644
--- a/src/encoder/symbols.c
+++ b/src/encoder/symbols.c
@@ -1,5 +1,6 @@
 #include "symbols.h"
 #include "../error.h"
+#include <assert.h>
 #include <stdlib.h>
 #include <string.h>
 
@@ -59,11 +60,15 @@ error_t *symbol_table_get_node_info(ast_node_t *node, symbol_kind_t *kind,
     case NODE_LABEL:
         *kind = SYMBOL_LOCAL;
         *name = node->children[0]->token_entry->token.value;
-        break;
+        return nullptr;
     case NODE_LABEL_REFERENCE:
         *kind = SYMBOL_REFERENCE;
         *name = node->token_entry->token.value;
-        break;
+        return nullptr;
+    case NODE_IMPORT_DIRECTIVE:
+        assert(false && "not implemented");
+    case NODE_EXPORT_DIRECTIVE:
+        assert(false && "not implemented");
     // TODO: when .import and .export directives are created add them here
     default:
         return err_symbol_table_invalid_node;
@@ -117,6 +122,8 @@ error_t *symbol_table_add(symbol_table_t *table, char *name, symbol_kind_t kind,
         .node = node,
     };
 
+    table->len += 1;
+
     return nullptr;
 }