diff --git a/src/machine/core.cpp b/src/machine/core.cpp
index 9889b7f0..ff72d126 100644
--- a/src/machine/core.cpp
+++ b/src/machine/core.cpp
@@ -4,6 +4,8 @@
 #include "execute/alu.h"
 #include "utils.h"
 
+#include <cinttypes>
+
 LOG_CATEGORY("machine.core");
 
 using namespace machine;
@@ -626,8 +628,8 @@ bool StopExceptionHandler::handle_exception(
     Address mem_ref_addr) {
     Q_UNUSED(core)
     DEBUG(
-        "Exception cause %d instruction PC 0x%08lx next PC 0x%08lx jump branch PC 0x%08lx "
-        "registers PC 0x%08lx mem ref 0x%08lx",
+        "Exception cause %d instruction PC 0x%08" PRIx64 " next PC 0x%08" PRIx64 " jump branch PC 0x%08" PRIx64
+        "registers PC 0x%08" PRIx64 " mem ref 0x%08" PRIx64,
         excause, inst_addr.get_raw(), next_addr.get_raw(), jump_branch_pc.get_raw(),
         regs->read_pc().get_raw(), mem_ref_addr.get_raw());
     return true;
diff --git a/src/machine/memory/backend/memory.test.cpp b/src/machine/memory/backend/memory.test.cpp
index b568ff75..6430aecf 100644
--- a/src/machine/memory/backend/memory.test.cpp
+++ b/src/machine/memory/backend/memory.test.cpp
@@ -7,6 +7,8 @@
 #include "machine/memory/memory_utils.h"
 #include "tests/utils/integer_decomposition.h"
 
+#include <cinttypes>
+
 using namespace machine;
 
 // Default memory testing data. Some tests may use other values, where it
@@ -85,7 +87,7 @@ constexpr void prepare_data(
                     auto result_value
                         = (endian == BIG) ? (value << (stride * 8)) : (value >> (stride * 8));
                     QTest::addRow(
-                        "endian=%s, address=0x%lx, stride=%ld, value=0x%lx", to_string(endian),
+                        "endian=%s, address=0x%lx, stride=%ld, value=0x%" PRIx64, to_string(endian),
                         address, stride, value)
                         << endian << address << stride << IntegerDecomposition(value, endian)
                         << IntegerDecomposition(result_value, endian);
@@ -328,4 +330,4 @@ void TestMemory::memory_read_ctl() {
     }
 }
 
-QTEST_APPLESS_MAIN(TestMemory)
\ No newline at end of file
+QTEST_APPLESS_MAIN(TestMemory)
diff --git a/src/machine/memory/cache/cache.test.cpp b/src/machine/memory/cache/cache.test.cpp
index 4568bb13..d9ae770f 100644
--- a/src/machine/memory/cache/cache.test.cpp
+++ b/src/machine/memory/cache/cache.test.cpp
@@ -9,6 +9,8 @@
 
 #include <tests/utils/integer_decomposition.h>
 
+#include <cinttypes>
+
 using namespace machine;
 using std::array;
 using std::pair;
@@ -158,8 +160,8 @@ void TestCache::cache_correctness_data() {
                         auto result_value
                             = (endian == BIG) ? (value << (stride * 8)) : (value >> (stride * 8));
                         QTest::addRow(
-                            "endian=%s, address=0x%lx, stride=%ld, "
-                            "value=0x%lx, cache_config={ %d, "
+                            "endian=%s, address=0x%" PRIx64 ", stride=%ld, "
+                            "value=0x%" PRIx64 ", cache_config={ %d, "
                             "r=%d, wr=%d, s=%d, b=%d, a=%d }",
                             to_string(endian), address, stride, value, cache_config.enabled(),
                             cache_config.replacement_policy(), cache_config.write_policy(),
diff --git a/src/os_emulation/ossyscall.cpp b/src/os_emulation/ossyscall.cpp
index 89ce3cc0..306e011c 100644
--- a/src/os_emulation/ossyscall.cpp
+++ b/src/os_emulation/ossyscall.cpp
@@ -570,12 +570,12 @@ bool OsSyscallExceptionHandler::handle_exception(
 
 #if 1
     printf(
-        "Exception cause %d instruction PC 0x%08lx next PC 0x%08lx jump branch "
-        "PC 0x%08lx "
-        "registers PC 0x%08lx mem ref 0x%08lx\n",
-        excause, (unsigned long)inst_addr.get_raw(), (unsigned long)next_addr.get_raw(),
-        (unsigned long)jump_branch_pc.get_raw(), (unsigned long)regs->read_pc().get_raw(),
-        (unsigned long)mem_ref_addr.get_raw());
+        "Exception cause %d instruction PC 0x%08" PRIx64 " next PC 0x%08" PRIx64 " jump branch "
+        "PC 0x%08" PRIx64
+        "registers PC 0x%08" PRIx64 " mem ref 0x%08" PRIx64 "\n",
+        excause, inst_addr.get_raw(), next_addr.get_raw(),
+        jump_branch_pc.get_raw(), regs->read_pc().get_raw(),
+        mem_ref_addr.get_raw());
 #else
     (void)excause;
     (void)inst_addr;
@@ -607,7 +607,7 @@ bool OsSyscallExceptionHandler::handle_exception(
 
 #if 1
     printf(
-        "Syscall %s number %ld/0x%lx a1=%" PRIu64 " a2=%" PRIu64 " a3=%" PRIu64 " a4=%" PRIu64 "\n",
+        "Syscall %s number %" PRId64 "/0x%" PRIx64 " a1=%" PRIu64 " a2=%" PRIu64 " a3=%" PRIu64 " a4=%" PRIu64 "\n",
         sdesc->name, syscall_num, syscall_num, a1.as_u64(), a2.as_u64(), a3.as_u64(), a4.as_u64());
 
 #endif
@@ -787,7 +787,8 @@ int OsSyscallExceptionHandler::syscall_default_handler(
     const rv_syscall_desc_t *sdesc = &rv_syscall_args[syscall_num];
 #if 1
     printf(
-        "Unimplemented syscall %s number %ld/0x%lx a1 %ld a2 %ld a3 %ld a4 %ld\n", sdesc->name,
+        "Unimplemented syscall %s number %" PRId64 "/0x%" PRIx64 " a1 %" PRId64
+        " a2 %" PRId64 " a3 %" PRId64 " a4 %" PRId64 "\n", sdesc->name,
         syscall_num, syscall_num, a1, a2, a3, a4);
 
 #endif
@@ -1052,7 +1053,7 @@ int OsSyscallExceptionHandler::do_sys_openat(
 
     result = 0;
     if (int64_t(a1) != TARGET_AT_FDCWD) {
-        printf("Unimplemented openat argument a1 %ld", a1);
+        printf("Unimplemented openat argument a1 %" PRId64, a1);
         if (unknown_syscall_stop) { emit core->stop_on_exception_reached(); }
         return TARGET_ENOSYS;
     }