diff --git a/.github/workflows/main-cmake.yml b/.github/workflows/main-cmake.yml
index 6ae52c72ce..9fab45b852 100644
--- a/.github/workflows/main-cmake.yml
+++ b/.github/workflows/main-cmake.yml
@@ -1,6 +1,6 @@
 name: NetCDF-C CMake CI - Windows
 
-on: [push, pull_request, workflow_dispatch]
+on: [ pull_request, workflow_dispatch]
 
 env:
   REMOTETESTDOWN: no
diff --git a/.github/workflows/run_tests_osx.yml b/.github/workflows/run_tests_osx.yml
index ccf359ec3a..bcf0e7c6e4 100644
--- a/.github/workflows/run_tests_osx.yml
+++ b/.github/workflows/run_tests_osx.yml
@@ -6,7 +6,7 @@
 
 name: Run macOS-based netCDF Tests
 
-on: [push,pull_request,workflow_dispatch]
+on: [pull_request,workflow_dispatch]
 
 concurrency:  
   group: ${{ github.workflow}}-${{ github.head_ref }}  
diff --git a/.github/workflows/run_tests_ubuntu.yml b/.github/workflows/run_tests_ubuntu.yml
index b3aa5c830d..c27cf8666e 100644
--- a/.github/workflows/run_tests_ubuntu.yml
+++ b/.github/workflows/run_tests_ubuntu.yml
@@ -4,7 +4,7 @@
 
 name: Run Ubuntu/Linux netCDF Tests
 
-on: [push,pull_request,workflow_dispatch]
+on: [pull_request,workflow_dispatch]
 
 env:
   REMOTETESTDOWN: no
diff --git a/.github/workflows/run_tests_win_cygwin.yml b/.github/workflows/run_tests_win_cygwin.yml
index 33da59584a..3de0e5612f 100644
--- a/.github/workflows/run_tests_win_cygwin.yml
+++ b/.github/workflows/run_tests_win_cygwin.yml
@@ -1,6 +1,6 @@
 name: Run Cygwin-based tests
 
-on: [push,pull_request,workflow_dispatch]
+on: [pull_request,workflow_dispatch]
 
 concurrency:
   group: ${{ github.workflow}}-${{ github.head_ref }}
diff --git a/.github/workflows/run_tests_win_mingw.yml b/.github/workflows/run_tests_win_mingw.yml
index 199b49d2c8..018863973b 100644
--- a/.github/workflows/run_tests_win_mingw.yml
+++ b/.github/workflows/run_tests_win_mingw.yml
@@ -10,7 +10,7 @@ env:
   CPPFLAGS: "-D_BSD_SOURCE"
   REMOTETESTDOWN: ${{ vars.REMOTETESTDOWN }}
 
-on: [push,pull_request,workflow_dispatch]
+on: [pull_request,workflow_dispatch]
 
 concurrency:  
   group: ${{ github.workflow}}-${{ github.head_ref }}  
diff --git a/nczarr_test/ut_util.c b/nczarr_test/ut_util.c
index ba862843db..fe154c93e0 100644
--- a/nczarr_test/ut_util.c
+++ b/nczarr_test/ut_util.c
@@ -340,7 +340,9 @@ impl2kind(NCZM_IMPL impl)
     case NCZM_GS3: return "gs3";
     case NCZM_FILE: return "file";
     case NCZM_ZIP: return "zip";
+#ifdef NETCDF_ENABLE_ZOH
     case NCZM_ZOH: return "zoh";
+#endif
     case NCZM_UNDEF: break;
     }
     return NULL;