diff --git a/lib/libc/wasi/libc-top-half/musl/src/exit/atexit.c b/lib/libc/wasi/libc-top-half/musl/src/exit/atexit.c
index 155292d0ea..30f897b7ea 100644
--- a/lib/libc/wasi/libc-top-half/musl/src/exit/atexit.c
+++ b/lib/libc/wasi/libc-top-half/musl/src/exit/atexit.c
@@ -4,11 +4,6 @@
 #include "lock.h"
 #include "fork_impl.h"
 
-#define malloc __libc_malloc
-#define calloc __libc_calloc
-#define realloc undef
-#define free undef
-
 /* Ensure that at least 32 atexit handlers can be registered without malloc */
 #define COUNT 32
 
diff --git a/lib/libc/wasi/libc-top-half/musl/src/include/stdlib.h b/lib/libc/wasi/libc-top-half/musl/src/include/stdlib.h
index 812b04de2f..1599691fbe 100644
--- a/lib/libc/wasi/libc-top-half/musl/src/include/stdlib.h
+++ b/lib/libc/wasi/libc-top-half/musl/src/include/stdlib.h
@@ -10,10 +10,4 @@ hidden int __ptsname_r(int, char *, size_t);
 hidden char *__randname(char *);
 hidden void __qsort_r (void *, size_t, size_t, int (*)(const void *, const void *, void *), void *);
 
-hidden void *__libc_malloc(size_t);
-hidden void *__libc_malloc_impl(size_t);
-hidden void *__libc_calloc(size_t, size_t);
-hidden void *__libc_realloc(void *, size_t);
-hidden void __libc_free(void *);
-
 #endif
diff --git a/lib/libc/wasi/libc-top-half/musl/src/locale/locale_map.c b/lib/libc/wasi/libc-top-half/musl/src/locale/locale_map.c
index ebfb158f4a..b7463fa54f 100644
--- a/lib/libc/wasi/libc-top-half/musl/src/locale/locale_map.c
+++ b/lib/libc/wasi/libc-top-half/musl/src/locale/locale_map.c
@@ -9,11 +9,6 @@
 #include "lock.h"
 #include "fork_impl.h"
 
-#define malloc __libc_malloc
-#define calloc undef
-#define realloc undef
-#define free undef
-
 const char *__lctrans_impl(const char *msg, const struct __locale_map *lm)
 {
 	const char *trans = 0;
diff --git a/lib/libc/wasi/libc-top-half/musl/src/locale/newlocale.c b/lib/libc/wasi/libc-top-half/musl/src/locale/newlocale.c
index 11c778557a..154682de97 100644
--- a/lib/libc/wasi/libc-top-half/musl/src/locale/newlocale.c
+++ b/lib/libc/wasi/libc-top-half/musl/src/locale/newlocale.c
@@ -6,11 +6,6 @@
 #include "locale_impl.h"
 #include "lock.h"
 
-#define malloc __libc_malloc
-#define calloc undef
-#define realloc undef
-#define free undef
-
 static int default_locale_init_done;
 static struct __locale_struct default_locale, default_ctype_locale;
 
diff --git a/lib/libc/wasi/libc-top-half/musl/src/time/__tz.c b/lib/libc/wasi/libc-top-half/musl/src/time/__tz.c
index 7efb9a9757..ee05eb58f8 100644
--- a/lib/libc/wasi/libc-top-half/musl/src/time/__tz.c
+++ b/lib/libc/wasi/libc-top-half/musl/src/time/__tz.c
@@ -11,11 +11,6 @@
 #include "lock.h"
 #include "fork_impl.h"
 
-#define malloc __libc_malloc
-#define calloc undef
-#define realloc undef
-#define free undef
-
 #ifdef __wasilibc_unmodified_upstream // timezone data
 long  __timezone = 0;
 int   __daylight = 0;