diff --git a/src/libc/string/strtok.c b/src/libc/string/strtok.c
index 11d81d3..a60f794 100644
--- a/src/libc/string/strtok.c
+++ b/src/libc/string/strtok.c
@@ -12,7 +12,7 @@ char *strtok(char * restrict new_s, char const * restrict separators)
 	/* Skip non-delimiters */
 	char *token = s;
 	s += strcspn(s, separators);
-	*s++ = 0;
+	if(*s) *s++ = 0;
 
 	return token;
 }