diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3d6a4e0376..843ed480cd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -144,7 +144,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: config
-      run: ./config --banner=Configured --debug enable-asan enable-ubsan enable-rc5 enable-md2 enable-ec_nistp_64_gcc_128 enable-fips enable-quic -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION -DPEDANTIC && perl configdata.pm --dump
+      run: ./config --banner=Configured --debug enable-asan enable-ubsan enable-rc5 enable-md2 enable-ec_nistp_64_gcc_128 enable-fips enable-quic -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION && perl configdata.pm --dump
     - name: make
       run: make -s -j4
     - name: make test
diff --git a/.github/workflows/fuzz-checker.yml b/.github/workflows/fuzz-checker.yml
index 9e5627fd03..2347ebae41 100644
--- a/.github/workflows/fuzz-checker.yml
+++ b/.github/workflows/fuzz-checker.yml
@@ -25,7 +25,7 @@ jobs:
             cc: afl-clang-fast
           }, {
             name: libFuzzer,
-            config: enable-fuzz-libfuzzer -DPEDANTIC enable-asan enable-ubsan,
+            config: enable-fuzz-libfuzzer enable-asan enable-ubsan,
             libs: --with-fuzzer-lib=/usr/lib/llvm-12/lib/libFuzzer.a --with-fuzzer-include=/usr/lib/llvm-12/build/lib/clang/12.0.0/include/fuzzer,
             install: libfuzzer-12-dev,
             cc: clang-12,
@@ -33,7 +33,7 @@ jobs:
             tests: -test_memleak
           }, {
             name: libFuzzer+,
-            config: enable-fuzz-libfuzzer -DPEDANTIC enable-asan enable-ubsan -fsanitize-coverage=trace-cmp -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION,
+            config: enable-fuzz-libfuzzer enable-asan enable-ubsan -fsanitize-coverage=trace-cmp -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION,
             libs: --with-fuzzer-lib=/usr/lib/llvm-12/lib/libFuzzer.a --with-fuzzer-include=/usr/lib/llvm-12/build/lib/clang/12.0.0/include/fuzzer,
             extra: enable-fips enable-ec_nistp_64_gcc_128 -fno-sanitize=alignment enable-tls1_3 enable-weak-ssl-ciphers enable-rc5 enable-md2 enable-ssl3 enable-ssl3-method enable-nextprotoneg,
             install: libfuzzer-12-dev,
diff --git a/.github/workflows/run-checker-merge.yml b/.github/workflows/run-checker-merge.yml
index dcc9d0d15f..82f3b29b0e 100644
--- a/.github/workflows/run-checker-merge.yml
+++ b/.github/workflows/run-checker-merge.yml
@@ -25,7 +25,7 @@ jobs:
           no-engine no-shared,
           no-err,
           no-filenames,
-          enable-ubsan no-asm -DPEDANTIC -DOPENSSL_SMALL_FOOTPRINT -fno-sanitize=alignment,
+          enable-ubsan no-asm -DOPENSSL_SMALL_FOOTPRINT -fno-sanitize=alignment,
           no-unit-test,
           enable-weak-ssl-ciphers,
           enable-zlib,
diff --git a/Configure b/Configure
index 76f5d6299f..b5ee68d54d 100755
--- a/Configure
+++ b/Configure
@@ -1509,9 +1509,7 @@ unless ($disabled{asan} || defined $detected_sanitizers{asan}) {
 }
 
 unless ($disabled{ubsan} || defined $detected_sanitizers{ubsan}) {
-    # -DPEDANTIC or -fnosanitize=alignment may also be required on some
-    # platforms.
-    push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all";
+    push @{$config{cflags}}, "-fsanitize=undefined", "-fno-sanitize-recover=all", "-DPEDANTIC";
 }
 
 unless ($disabled{msan} || defined $detected_sanitizers{msan}) {