diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 52ba66dd0fecd6..0f96e5894b3459 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -71,25 +71,30 @@ jobs:
 
       - run: make
 
+      - name: Set test options for skipped tests
+        run: |
+          set -x
+          TESTS="$(echo "${{ matrix.skipped_tests }}" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|')"
+          echo "TESTS=${TESTS}" >> $GITHUB_ENV
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+
       - name: make ${{ matrix.test_task }}
         run: |
-          make -s ${{ matrix.test_task }} ${TESTS:+TESTS=`echo "$TESTS" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|'`}
+          make -s ${{ matrix.test_task }} ${TESTS:+TESTS="$TESTS"}
         timeout-minutes: 60
         env:
           RUBY_TESTOPTS: '-q --tty=no'
-          TESTS: ${{ matrix.test_task == 'check' && matrix.skipped_tests || '' }}
           TEST_BUNDLED_GEMS_ALLOW_FAILURES: 'minitest,test-unit,debug,bigdecimal,drb,typeprof'
           PRECHECK_BUNDLED_GEMS: 'no'
 
       - name: make skipped tests
         run: |
-          make -s test-all TESTS=`echo "$TESTS" | sed 's| |$$/ -n/|g;s|^|-n/|;s|$|$$/|'`
+          make -s test-all TESTS="${TESTS//-n!\//-n/}"
         env:
           GNUMAKEFLAGS: ''
           RUBY_TESTOPTS: '-v --tty=no'
-          TESTS: ${{ matrix.skipped_tests }}
           PRECHECK_BUNDLED_GEMS: 'no'
-        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests != '' }}
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
         continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
 
       - uses: ./.github/actions/slack
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 55c3213b16ecad..316cd3786d5312 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -88,26 +88,31 @@ jobs:
 
       - run: $SETARCH make
 
+      - name: Set test options for skipped tests
+        run: |
+          set -x
+          TESTS="$(echo "${{ matrix.skipped_tests }}" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|')"
+          echo "TESTS=${TESTS}" >> $GITHUB_ENV
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+
       - name: make ${{ matrix.test_task }}
         run: >-
           $SETARCH make -s ${{ matrix.test_task }}
-          ${TESTS:+TESTS=`echo "$TESTS" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|'`}
+          ${TESTS:+TESTS="$TESTS"}
           ${{ !contains(matrix.test_task, 'bundle') && 'RUBYOPT=-w' || '' }}
         timeout-minutes: 40
         env:
           RUBY_TESTOPTS: '-q --tty=no'
-          TESTS: ${{ matrix.test_task == 'check' && matrix.skipped_tests || '' }}
           TEST_BUNDLED_GEMS_ALLOW_FAILURES: 'minitest,test-unit,debug,bigdecimal,drb,typeprof'
           PRECHECK_BUNDLED_GEMS: 'no'
 
       - name: make skipped tests
         run: |
-          $SETARCH make -s test-all TESTS=`echo "$TESTS" | sed 's| |$$/ -n/|g;s|^|-n/|;s|$|$$/|'`
+          $SETARCH make -s test-all TESTS="${TESTS//-n!\//-n/}"
         env:
           GNUMAKEFLAGS: ''
           RUBY_TESTOPTS: '-v --tty=no'
-          TESTS: ${{ matrix.skipped_tests }}
-        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests != '' }}
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
         continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
 
       - uses: ./.github/actions/slack
diff --git a/.github/workflows/yjit-macos.yml b/.github/workflows/yjit-macos.yml
index 6413e6b5ee5c01..c2a6ca04f05c5d 100644
--- a/.github/workflows/yjit-macos.yml
+++ b/.github/workflows/yjit-macos.yml
@@ -103,26 +103,31 @@ jobs:
       - name: Enable YJIT through ENV
         run: echo "RUBY_YJIT_ENABLE=1" >> $GITHUB_ENV
 
+      - name: Set test options for skipped tests
+        run: |
+          set -x
+          TESTS="$(echo "${{ matrix.skipped_tests }}" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|')"
+          echo "TESTS=${TESTS}" >> $GITHUB_ENV
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
+
       - name: make ${{ matrix.test_task }}
         run: |
-          make -s ${{ matrix.test_task }} ${TESTS:+TESTS=`echo "$TESTS" | sed 's| |$$/ -n!/|g;s|^|-n!/|;s|$|$$/|'`}
+          make -s ${{ matrix.test_task }} ${TESTS:+TESTS="$TESTS"}
         timeout-minutes: 60
         env:
           RUBY_TESTOPTS: '-q --tty=no'
-          TESTS: ${{ matrix.test_task == 'check' && matrix.skipped_tests || '' }}
           TEST_BUNDLED_GEMS_ALLOW_FAILURES: ''
           PRECHECK_BUNDLED_GEMS: 'no'
         continue-on-error: ${{ matrix.continue-on-test_task || false }}
 
       - name: make skipped tests
         run: |
-          make -s test-all TESTS=`echo "$TESTS" | sed 's| |$$/ -n/|g;s|^|-n/|;s|$|$$/|'`
+          make -s test-all TESTS="${TESTS//-n!\//-n/}"
         env:
           GNUMAKEFLAGS: ''
           RUBY_TESTOPTS: '-v --tty=no'
-          TESTS: ${{ matrix.skipped_tests }}
           PRECHECK_BUNDLED_GEMS: 'no'
-        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests != '' }}
+        if: ${{ matrix.test_task == 'check' && matrix.skipped_tests }}
         continue-on-error: ${{ matrix.continue-on-skipped_tests || false }}
 
       - uses: ./.github/actions/slack