diff --git a/py/mpprint.c b/py/mpprint.c
index af485a50f2..df73587449 100644
--- a/py/mpprint.c
+++ b/py/mpprint.c
@@ -545,7 +545,12 @@ int mp_vprintf(const mp_print_t *print, const char *fmt, va_list args) {
             case 'p':
             case 'P': // don't bother to handle upcase for 'P'
                 // Use unsigned long int to work on both ILP32 and LP64 systems
-                chrs += mp_print_int(print, va_arg(args, unsigned long int), 0, 16, 'a', flags, fill, width);
+                #if SUPPORT_INT_BASE_PREFIX
+                chrs += mp_print_int(print, va_arg(args, unsigned long int), 0, 16, 'a', flags | PF_FLAG_SHOW_PREFIX, fill, width);
+                #else
+                print->print_strn(print->data, "0x", 2);
+                chrs += mp_print_int(print, va_arg(args, unsigned long int), 0, 16, 'a', flags, fill, width) + 2;
+                #endif
                 break;
             #if MICROPY_PY_BUILTINS_FLOAT
             case 'e':
diff --git a/py/objfun.c b/py/objfun.c
index 115957e09c..23698ad95c 100644
--- a/py/objfun.c
+++ b/py/objfun.c
@@ -182,7 +182,7 @@ qstr mp_obj_fun_get_name(mp_const_obj_t fun_in) {
 STATIC void fun_bc_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
     (void)kind;
     mp_obj_fun_bc_t *o = MP_OBJ_TO_PTR(o_in);
-    mp_printf(print, "<function %q at 0x%p>", mp_obj_fun_get_name(o_in), o);
+    mp_printf(print, "<function %q at %p>", mp_obj_fun_get_name(o_in), o);
 }
 #endif
 
diff --git a/py/profile.c b/py/profile.c
index e5fb35f0ed..2e59b97703 100644
--- a/py/profile.c
+++ b/py/profile.c
@@ -68,7 +68,7 @@ STATIC void code_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t k
     const mp_raw_code_t *rc = o->rc;
     const mp_bytecode_prelude_t *prelude = &rc->prelude;
     mp_printf(print,
-        "<code object %q at 0x%p, file \"%q\", line %d>",
+        "<code object %q at %p, file \"%q\", line %d>",
         prelude->qstr_block_name,
         o,
         prelude->qstr_source_file,
@@ -202,7 +202,7 @@ STATIC void frame_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t
     const mp_raw_code_t *rc = code->rc;
     const mp_bytecode_prelude_t *prelude = &rc->prelude;
     mp_printf(print,
-        "<frame at 0x%p, file '%q', line %d, code %q>",
+        "<frame at %p, file '%q', line %d, code %q>",
         frame,
         prelude->qstr_source_file,
         frame->lineno,
@@ -950,7 +950,7 @@ void mp_prof_print_instr(const byte *ip, mp_code_state_t *code_state) {
 
     /* long path */ if (1) {
         mp_printf(&mp_plat_print,
-            "@0x%p:%q:%q+0x%04x:%d",
+            "@%p:%q:%q+0x%04x:%d",
             ip,
             prelude->qstr_source_file,
             prelude->qstr_block_name,
diff --git a/tests/extmod/uctypes_print.py.exp b/tests/extmod/uctypes_print.py.exp
index 63daefc848..b1c730d44f 100644
--- a/tests/extmod/uctypes_print.py.exp
+++ b/tests/extmod/uctypes_print.py.exp
@@ -1,4 +1,4 @@
-<struct STRUCT 0>
-<struct ERROR 0>
-<struct ARRAY 0>
-<struct PTR 0>
+<struct STRUCT 0x0>
+<struct ERROR 0x0>
+<struct ARRAY 0x0>
+<struct PTR 0x0>
diff --git a/tests/unix/extra_coverage.py.exp b/tests/unix/extra_coverage.py.exp
index 57f4b139f9..2cf48de142 100644
--- a/tests/unix/extra_coverage.py.exp
+++ b/tests/unix/extra_coverage.py.exp
@@ -15,8 +15,8 @@ false true
 abc
 %
 # GC
-0
-0
+0x0
+0x0
 # vstr
 tests
 sts