diff --git a/src/kernel/libroot/posix/string/strerror.c b/src/kernel/libroot/posix/string/strerror.c
index 23d8c90e2b..80e571a9da 100644
--- a/src/kernel/libroot/posix/string/strerror.c
+++ b/src/kernel/libroot/posix/string/strerror.c
@@ -9,7 +9,7 @@
 #include <kerrors.h>
 
 
-char const *
+char *
 strerror(int errnum)
 {
 	switch (errnum) {