diff --git a/src/dynarmic/src/dynarmic/backend/x64/a32_emit_x64.cpp b/src/dynarmic/src/dynarmic/backend/x64/a32_emit_x64.cpp
index cc9d2d21ac..36349c4f36 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/a32_emit_x64.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/a32_emit_x64.cpp
@@ -114,7 +114,7 @@ A32EmitX64::BlockDescriptor A32EmitX64::Emit(IR::Block& block) {
 
     // up to 2 labels per insn
     if (auto const inst_count = block.instructions.size(); inst_count > shared_labels.capacity())
-        shared_labels.reserve(inst_count * 8);
+        shared_labels.reserve(inst_count * 16);
     A32EmitContext ctx{conf, reg_alloc, block, shared_labels};
 
     // Start emitting.
diff --git a/src/dynarmic/src/dynarmic/backend/x64/a64_emit_x64.cpp b/src/dynarmic/src/dynarmic/backend/x64/a64_emit_x64.cpp
index ab30e39273..e80063b63c 100644
--- a/src/dynarmic/src/dynarmic/backend/x64/a64_emit_x64.cpp
+++ b/src/dynarmic/src/dynarmic/backend/x64/a64_emit_x64.cpp
@@ -88,7 +88,7 @@ A64EmitX64::BlockDescriptor A64EmitX64::Emit(IR::Block& block) noexcept {
 
     // up to 2 labels per insn
     if (auto const inst_count = block.instructions.size(); inst_count > shared_labels.capacity())
-        shared_labels.reserve(inst_count * 8);
+        shared_labels.reserve(inst_count * 16);
     A64EmitContext ctx{conf, reg_alloc, block, shared_labels};
 
     // Start emitting.