diff --git a/src/asm/lexer.c b/src/asm/lexer.c
index 2c180b59..9a36a4dd 100644
--- a/src/asm/lexer.c
+++ b/src/asm/lexer.c
@@ -24,7 +24,6 @@
 #include <unistd.h>
 #endif
 
-#include "extern/utf8decoder.h"
 #include "platform.h" /* For `ssize_t` */
 
 #include "asm/lexer.h"