diff --git a/.appveyor.yml b/.appveyor.yml
index af7e52d38..6d8ac806d 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -37,7 +37,7 @@ build_script:
 test_script:
   # the "go-checks" target fails in AppVeyor, for some reason; easier to disable than to debug
   - mingw32-make -j2 ARCH_OVERRIDE=%PLATFORM% DISABLE_GO_CHECKS=1 P2PD_CACHE=p2pdCache
-  - mingw32-make -j2 ARCH_OVERRIDE=%PLATFORM% DISABLE_GO_CHECKS=1 P2PD_CACHE=p2pdCache NIMFLAGS="-d:NETWORK_TYPE=libp2p"
+  - mingw32-make -j2 ARCH_OVERRIDE=%PLATFORM% DISABLE_GO_CHECKS=1 P2PD_CACHE=p2pdCache NIMFLAGS="-d:NETWORK_TYPE=libp2p -d:testnet_servers_image"
   - mingw32-make -j2 ARCH_OVERRIDE=%PLATFORM% DISABLE_TEST_FIXTURES_SCRIPT=1 DISABLE_GO_CHECKS=1 test
 
 deploy: off
diff --git a/.travis.yml b/.travis.yml
index d7c9e0696..9fab9b125 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -50,6 +50,6 @@ script:
   # Building Nim-1.0.4 takes up to 10 minutes on Travis - the time limit after which jobs are cancelled for having no output
   - make -j${NPROC} NIMFLAGS="--parallelBuild:${NPROC}" V=1 update # to allow a newer Nim version to be detected
   - make -j${NPROC} NIMFLAGS="--parallelBuild:${NPROC}"
-  - make -j${NPROC} NIMFLAGS="--parallelBuild:${NPROC}" NIMFLAGS="-d:NETWORK_TYPE=libp2p"
+  - make -j${NPROC} NIMFLAGS="--parallelBuild:${NPROC}" NIMFLAGS="-d:NETWORK_TYPE=libp2p -d:testnet_servers_image"
   - make -j${NPROC} NIMFLAGS="--parallelBuild:${NPROC}" DISABLE_TEST_FIXTURES_SCRIPT=1 test
 
diff --git a/Jenkinsfile b/Jenkinsfile
index e1ec60f10..0f59e82fb 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -22,7 +22,7 @@ def runStages() {
 				"tools": {
 					stage("Tools") {
 						sh "make -j${env.NPROC}"
-						sh "make -j${env.NPROC} NIMFLAGS='-d:NETWORK_TYPE=libp2p'"
+						sh "make -j${env.NPROC} NIMFLAGS='-d:NETWORK_TYPE=libp2p -d:testnet_servers_image'"
 					}
 				},
 				"test suite": {
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index 969fc54a2..1fc333cf7 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -72,7 +72,7 @@ jobs:
           mingw32-make -j2 ARCH_OVERRIDE=${PLATFORM} CI_CACHE=NimBinaries update
           mingw32-make -j2 ARCH_OVERRIDE=${PLATFORM} fetch-dlls
           mingw32-make -j2 ARCH_OVERRIDE=${PLATFORM} P2PD_CACHE=p2pdCache
-          mingw32-make -j2 ARCH_OVERRIDE=${PLATFORM} P2PD_CACHE=p2pdCache NIMFLAGS="-d:NETWORK_TYPE=libp2p"
+          mingw32-make -j2 ARCH_OVERRIDE=${PLATFORM} P2PD_CACHE=p2pdCache NIMFLAGS="-d:NETWORK_TYPE=libp2p -d:testnet_servers_image"
           file build/beacon_node
           mingw32-make -j2 ARCH_OVERRIDE=${PLATFORM} DISABLE_TEST_FIXTURES_SCRIPT=1 test
         displayName: 'build and test'