diff --git a/assembler/file_parser.c b/assembler/file_parser.c
index 36faa3e..60c845e 100644
--- a/assembler/file_parser.c
+++ b/assembler/file_parser.c
@@ -7,6 +7,8 @@
 #include "file_parser.h"
 #include "tokenizer.h"
 
+int search(char *instruction);
+
 /*
  * The structs below map a character to an integer.
  * They are used in order to map a specific instruciton/register to its binary format in ASCII