diff --git a/libtop.c b/libtop.c
index 5afeaf3f90..755a584073 100644
--- a/libtop.c
+++ b/libtop.c
@@ -703,11 +703,20 @@
 	mach_vm_address_t base = 0, size = 0;
 
 	switch (type) {
+	case CPU_TYPE_ARM64_32:
+	   	base = SHARED_REGION_BASE_ARM64_32;
+		size = SHARED_REGION_SIZE_ARM64_32;
+		break;
+
 	case CPU_TYPE_ARM:
 		base = SHARED_REGION_BASE_ARM;
 		size = SHARED_REGION_SIZE_ARM;
 		break;
 
+	case CPU_TYPE_ARM64:
+		base = SHARED_REGION_BASE_ARM64;
+		size = SHARED_REGION_SIZE_ARM64;
+		break;
 
 	case CPU_TYPE_X86_64:
 		base = SHARED_REGION_BASE_X86_64;
@@ -816,6 +825,8 @@
 
 #if defined(__arm__)
 	libtop_p_fw_scan(mach_task_self(), SHARED_REGION_BASE_ARM, SHARED_REGION_SIZE_ARM);
+#elif defined(__arm64__) && !defined(__LP64__)
+	libtop_p_fw_scan(mach_task_self(), SHARED_REGION_BASE_ARM64_32, SHARED_REGION_SIZE_ARM64_32);
 #elif defined(__arm64__)
 	libtop_p_fw_scan(mach_task_self(), SHARED_REGION_BASE_ARM64, SHARED_REGION_SIZE_ARM64);
 #elif defined(__x86_64__) || defined(__i386__)
@@ -1329,6 +1340,14 @@
 	switch (type) {
 	case CPU_TYPE_ARM:
 		return SHARED_REGION_SIZE_ARM;
+#if defined(CPU_TYPE_ARM64)
+	case CPU_TYPE_ARM64:
+		return SHARED_REGION_SIZE_ARM64;
+#endif
+#if defined(CPU_TYPE_ARM64_32)
+	case CPU_TYPE_ARM64_32:
+		return SHARED_REGION_SIZE_ARM64_32;
+#endif
 	case CPU_TYPE_POWERPC:
 		return SHARED_REGION_SIZE_PPC;
 	case CPU_TYPE_POWERPC64:
diff --git a/pid.c b/pid.c
index 0d9a77460a..54d532d51b 100644
--- a/pid.c
+++ b/pid.c
@@ -54,8 +54,13 @@
 		proc_is_foreign = true;
 #endif
 		break;
+#if defined(CPU_TYPE_ARM64)
+	case CPU_TYPE_ARM64:
+		proc_is_64 = true;
+		// FALLTHROUGH
+#endif
 	case CPU_TYPE_ARM:
-#if !defined(__arm__)
+#if !defined(__arm__) && !defined(__arm64__)
 		proc_is_foreign = true;
 #endif
 		break;