diff --git a/docker/APKBUILD-boringssl b/docker/APKBUILD-boringssl
index 61caa4f..a162119 100644
--- a/docker/APKBUILD-boringssl
+++ b/docker/APKBUILD-boringssl
@@ -20,7 +20,7 @@ prepare() {
 }
 
 build() {
-	cmake -DCMAKE_BUILD_TYPE=Release .
+	cmake -DCMAKE_BUILD_TYPE=Debug .
 	make ssl crypto
 }
 
diff --git a/docker/APKBUILD-lsquic b/docker/APKBUILD-lsquic
index 51630a0..2e2f982 100644
--- a/docker/APKBUILD-lsquic
+++ b/docker/APKBUILD-lsquic
@@ -21,7 +21,7 @@ prepare() {
 
 build() {
 	cmake \
-		-DCMAKE_BUILD_TYPE=None \
+		-DCMAKE_BUILD_TYPE=RelWithDebInfo \
 		-DBORINGSSL_INCLUDE=/usr/include/openssl \
 		-DBORINGSSL_LIB_crypto=/usr/lib \
 		-DBORINGSSL_LIB_ssl=/usr/lib .
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 4635350..02f269a 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -23,7 +23,6 @@ RUN mkdir tmp && cd tmp && \
     ar -x /usr/lib/libcrypto.a && \
     ar -x /usr/lib/liblsquic.a && \
     ar rc liblsquic.a *.o && \
-    strip --strip-unneeded liblsquic.a && \
     ranlib liblsquic.a && \
     cp liblsquic.a /root/liblsquic.a && \
     cd .. && rm -rf tmp
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