diff --git a/worker/Dockerfile b/worker/Dockerfile
index 64ae430df2..3a0dd68de8 100644
--- a/worker/Dockerfile
+++ b/worker/Dockerfile
@@ -6,7 +6,7 @@ RUN set -x \
 	&& apt-get install --yes \
 		gcc g++ clang pkg-config bash-completion wget curl \
 		screen python3-pip python3-yaml pkg-config zlib1g-dev \
-		libgss-dev libssl-dev libxml2-dev
+		libgss-dev libssl-dev libxml2-dev gdb
 
 # Install node 20.
 RUN set -x \
@@ -21,6 +21,10 @@ RUN set -x \
 	&& apt-get update \
 	&& apt-get install nodejs --yes
 
+# Enable core dumps.
+RUN set -x \
+	&& echo "mkdir -p /tmp/cores && chmod 777 /tmp/cores && echo \"/tmp/cores/core.%e.sig%s.%p\" > /proc/sys/kernel/core_pattern && ulimit -c unlimited" >> ~/.bashrc
+
 # Make CC and CXX point to clang/clang++ installed above.
 ENV LANG="C.UTF-8"
 ENV CC="clang"
diff --git a/worker/test/src/RTC/RTCP/TestXr.cpp b/worker/test/src/RTC/RTCP/TestXr.cpp
index 82680a0eca..941fe7452d 100644
--- a/worker/test/src/RTC/RTCP/TestXr.cpp
+++ b/worker/test/src/RTC/RTCP/TestXr.cpp
@@ -3,6 +3,7 @@
 #include "RTC/RTCP/XrDelaySinceLastRr.hpp"
 #include "RTC/RTCP/XrReceiverReferenceTime.hpp"
 #include <catch2/catch_test_macros.hpp>
+#include <memory>
 #include <cstring> // std::memcmp(), std::memcpy()
 
 using namespace RTC::RTCP;