diff --git a/.github/scripts/Linux/arm/build.sh b/.github/scripts/Linux/arm/build.sh
index 34ce2ab3c..8ef1bbd04 100755
--- a/.github/scripts/Linux/arm/build.sh
+++ b/.github/scripts/Linux/arm/build.sh
@@ -12,7 +12,6 @@ APPNAME=UltraGrid-latest-${ARCH}.AppImage
 
 ./autogen.sh --enable-plugins
 make -j "$(nproc)"
-export UG_SKIP_NET_TESTS=1
 make check
 make distcheck
 
diff --git a/.github/scripts/macOS/prepare.sh b/.github/scripts/macOS/prepare.sh
index 10276d162..7a1f8a17a 100755
--- a/.github/scripts/macOS/prepare.sh
+++ b/.github/scripts/macOS/prepare.sh
@@ -9,7 +9,7 @@ CPATH=/usr/local/include:/usr/local/opt/qt/include
 DYLIBBUNDLER_FLAGS="${DYLIBBUNDLER_FLAGS:+$DYLIBBUNDLER_FLAGS }-s /usr/local/lib"
 LIBRARY_PATH=/usr/local/lib:/usr/local/opt/qt/lib
 # shellcheck disable=SC2140
-printf "%b" "UG_SKIP_NET_TESTS=1\n"\
+printf "%b" \
 "CPATH=$CPATH\n"\
 "LIBRARY_PATH=$LIBRARY_PATH\n" >> "$GITHUB_ENV"
 echo "PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/local/opt/qt/lib/pkgconfig" >> "$GITHUB_ENV"
diff --git a/test/run_tests.cpp b/test/run_tests.cpp
index 471ac3ea2..f4cec13a9 100644
--- a/test/run_tests.cpp
+++ b/test/run_tests.cpp
@@ -110,8 +110,8 @@ static bool run_standard_tests()
                 success = false;
         if (test_tv() != 0)
                 success = false;
-        if (!getenv("UG_SKIP_NET_TESTS") && test_net_udp() != 0)
-                success = false;
+        if (test_net_udp() != 0)
+                success = getenv("GITHUB_REPOSITORY") != NULL; // ignore failure if run in CI
         if (test_rtp() != 0)
                 success = false;