diff --git a/libc/malloc_debug/BacktraceData.cpp b/libc/malloc_debug/BacktraceData.cpp
index 3d46bf0..752d507 100644
--- a/libc/malloc_debug/BacktraceData.cpp
+++ b/libc/malloc_debug/BacktraceData.cpp
@@ -51,26 +51,26 @@
 
 BacktraceData::BacktraceData(DebugData* debug_data, const Config& config, size_t* offset)
     : OptionData(debug_data) {
-  size_t hdr_len = sizeof(BacktraceHeader) + sizeof(uintptr_t) * config.backtrace_frames;
+  size_t hdr_len = sizeof(BacktraceHeader) + sizeof(uintptr_t) * config.backtrace_frames();
   alloc_offset_ = *offset;
   *offset += BIONIC_ALIGN(hdr_len, MINIMUM_ALIGNMENT_BYTES);
 }
 
 bool BacktraceData::Initialize(const Config& config) {
-  enabled_ = config.backtrace_enabled;
-  if (config.backtrace_enable_on_signal) {
+  enabled_ = config.backtrace_enabled();
+  if (config.backtrace_enable_on_signal()) {
     struct sigaction enable_act;
     memset(&enable_act, 0, sizeof(enable_act));
 
     enable_act.sa_sigaction = EnableToggle;
     enable_act.sa_flags = SA_RESTART | SA_SIGINFO | SA_ONSTACK;
     sigemptyset(&enable_act.sa_mask);
-    if (sigaction(config.backtrace_signal, &enable_act, nullptr) != 0) {
+    if (sigaction(config.backtrace_signal(), &enable_act, nullptr) != 0) {
       error_log("Unable to set up backtrace signal enable function: %s", strerror(errno));
       return false;
     }
     info_log("%s: Run: 'kill -%d %d' to enable backtracing.", getprogname(),
-             config.backtrace_signal, getpid());
+             config.backtrace_signal(), getpid());
   }
   return true;
 }