diff --git a/lib/std/debug/Dwarf.zig b/lib/std/debug/Dwarf.zig
index 3bc5fcf4f0..64731beac3 100644
--- a/lib/std/debug/Dwarf.zig
+++ b/lib/std/debug/Dwarf.zig
@@ -1432,7 +1432,7 @@ pub fn ipRegNum(arch: std.Target.Cpu.Arch) ?u16 {
         .aarch64, .aarch64_be => 32,
         .arm, .armeb, .thumb, .thumbeb => 15,
         .hexagon => 76,
-        .loongarch32, .loongarch64 => 32,
+        .loongarch32, .loongarch64 => 64,
         .mips, .mipsel, .mips64, .mips64el => 37,
         .powerpc, .powerpcle, .powerpc64, .powerpc64le => 357,
         .riscv32, .riscv32be, .riscv64, .riscv64be => 32,
diff --git a/lib/std/debug/cpu_context.zig b/lib/std/debug/cpu_context.zig
index bfc82f33ec..7760918389 100644
--- a/lib/std/debug/cpu_context.zig
+++ b/lib/std/debug/cpu_context.zig
@@ -700,7 +700,7 @@ pub const LoongArch = extern struct {
     pub fn dwarfRegisterBytes(ctx: *LoongArch, register_num: u16) DwarfRegisterError![]u8 {
         switch (register_num) {
             0...31 => return @ptrCast(&ctx.r[register_num]),
-            32 => return @ptrCast(&ctx.pc),
+            64 => return @ptrCast(&ctx.pc),
 
             else => return error.InvalidRegister,
         }