diff --git a/headers/posix/string.h b/headers/posix/string.h
index 802abcd522..8e29ca49fe 100644
--- a/headers/posix/string.h
+++ b/headers/posix/string.h
@@ -78,6 +78,8 @@ extern const char	*strsignal(int signal);
 #define bzero(buffer, length) memset((buffer), 0, (length))
 
 extern int ffs(int i);
+extern char 		*index(const char *s, int c);
+extern char 		*rindex(char const *s, int c);
 
 #ifdef __cplusplus
 }
diff --git a/src/system/libroot/posix/string/strchr.c b/src/system/libroot/posix/string/strchr.c
index a914b961d4..fec3cd6e92 100644
--- a/src/system/libroot/posix/string/strchr.c
+++ b/src/system/libroot/posix/string/strchr.c
@@ -16,3 +16,10 @@ strchr(const char *s, int c)
 	return (char *)s;
 }
 
+
+char *
+index(const char *s, int c)
+{
+	return strchr(s, c);
+}
+
diff --git a/src/system/libroot/posix/string/strrchr.c b/src/system/libroot/posix/string/strrchr.c
index be8ab086c0..a2abeb86f0 100644
--- a/src/system/libroot/posix/string/strrchr.c
+++ b/src/system/libroot/posix/string/strrchr.c
@@ -22,3 +22,11 @@ strrchr(char const *s, int c)
 
 	return (char *)last;
 }
+
+
+char *
+rindex(char const *s, int c)
+{
+	return strrchr(s, c);
+}
+