diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index b412dffea17..197d626ec79 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -144,6 +144,19 @@ jobs:
               TEST_PYTEST=1
               TEST_MD=1
           # -------------------------------------------------------------------------
+          # As above, on a 64-bit ARM runner.
+          - name: Python pytest test suites, 64-bit ARM
+            config: --enable-mods-shared=reallyall --with-mpm=event --enable-mpms-shared=all
+            os: ubuntu-24.04-arm
+            pkgs: nghttp2-client
+            env: |
+              APR_VERSION=1.7.6
+              APU_VERSION=1.6.5
+              APU_CONFIG="--with-crypto"
+              NO_TEST_FRAMEWORK=1
+              TEST_PYTEST=1
+              TEST_MD=1
+          # -------------------------------------------------------------------------
           # Test against a newer nghttp2 than in the Ubuntu images.
           - name: mod_http2 w/nghttp2 1.68.0
             config: --enable-mods-shared=reallyall --enable-maintainer-mode --with-mpm=event
diff --git a/test/clients/h2ws.c b/test/clients/h2ws.c
index 309348944ba..26864405ca2 100644
--- a/test/clients/h2ws.c
+++ b/test/clients/h2ws.c
@@ -973,7 +973,7 @@ int main(int argc, char *argv[])
     struct uri uri;
     struct h2_session session;
     struct ws_stream *stream;
-    char ch;
+    int ch;
 
     cmd = argv[0];
     while((ch = getopt(argc, argv, "c:vh")) != -1) {