diff --git a/docker/Dockerfile b/docker/Dockerfile
index d29656b0..8f8e5d6b 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -8,6 +8,7 @@ RUN cd opendht && mkdir build && cd build \
 	&& cmake -GNinja .. -DCMAKE_INSTALL_PREFIX=/usr \
 	-DBUILD_TESTING=Off \
 	-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=On \
+	-DCMAKE_BUILD_TYPE=RelWithDebInfo \
 	-DOPENDHT_C=On \
 	-DOPENDHT_PEER_DISCOVERY=On \
 	-DOPENDHT_PYTHON=On \
diff --git a/docker/DockerfileAlpine b/docker/DockerfileAlpine
index 2e844c1f..97498827 100644
--- a/docker/DockerfileAlpine
+++ b/docker/DockerfileAlpine
@@ -10,6 +10,7 @@ ENV DESTDIR=/install
 RUN cd opendht && mkdir build && cd build \
 	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
                 -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=On \
+                -DCMAKE_BUILD_TYPE=RelWithDebInfo \
                 -DBUILD_TESTING=Off \
                 -DOPENDHT_C=On \
                 -DOPENDHT_PEER_DISCOVERY=On \
diff --git a/docker/DockerfileFocal b/docker/DockerfileFocal
index 2c186b38..66e6b83c 100644
--- a/docker/DockerfileFocal
+++ b/docker/DockerfileFocal
@@ -8,6 +8,7 @@ RUN cd opendht && mkdir build && cd build \
 	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
 				-DBUILD_TESTING=Off \
 				-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=On \
+				-DCMAKE_BUILD_TYPE=RelWithDebInfo \
 				-DOPENDHT_C=On \
 				-DOPENDHT_PEER_DISCOVERY=On \
 				-DOPENDHT_PYTHON=On \
diff --git a/docker/DockerfileLlvm b/docker/DockerfileLlvm
index f704ea2f..0fd12c84 100644
--- a/docker/DockerfileLlvm
+++ b/docker/DockerfileLlvm
@@ -7,6 +7,7 @@ COPY . opendht
 RUN cd opendht && mkdir build && cd build \
 	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
 				-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=On \
+				-DCMAKE_BUILD_TYPE=RelWithDebInfo \
 				-DOPENDHT_C=On \
 				-DOPENDHT_PEER_DISCOVERY=On \
 				-DOPENDHT_PYTHON=On \
diff --git a/docker/DockerfileNoble b/docker/DockerfileNoble
index 93788e9c..33056b31 100644
--- a/docker/DockerfileNoble
+++ b/docker/DockerfileNoble
@@ -8,6 +8,7 @@ RUN cd opendht && mkdir build && cd build \
 	&& cmake .. -DCMAKE_INSTALL_PREFIX=/usr \
 	-DBUILD_TESTING=Off \
 	-DCMAKE_INTERPROCEDURAL_OPTIMIZATION=On \
+	-DCMAKE_BUILD_TYPE=RelWithDebInfo \
 	-DOPENDHT_C=On \
 	-DOPENDHT_PEER_DISCOVERY=On \
 	-DOPENDHT_PYTHON=On \