diff --git a/ci/linux-presubmit.sh b/ci/linux-presubmit.sh
index 71471886..8d00bcaa 100644
--- a/ci/linux-presubmit.sh
+++ b/ci/linux-presubmit.sh
@@ -76,6 +76,7 @@ time docker run \
     /usr/local/bin/bazel test ... \
       --copt="-Wall" \
       --copt="-Werror" \
+      --copt="-Wuninitialized" \
       --copt="-Wno-error=pragmas" \
       --keep_going \
       --show_timestamps \
@@ -94,6 +95,7 @@ for std in ${STD}; do
       /usr/local/bin/bazel test ... \
         --copt="-Wall" \
         --copt="-Werror" \
+        --copt="-Wuninitialized" \
         --define="absl=${absl}" \
         --distdir="/bazel-distdir" \
         --keep_going \
@@ -116,6 +118,7 @@ for std in ${STD}; do
         --copt="--gcc-toolchain=/usr/local" \
         --copt="-Wall" \
         --copt="-Werror" \
+        --copt="-Wuninitialized" \
         --define="absl=${absl}" \
         --distdir="/bazel-distdir" \
         --keep_going \
diff --git a/googletest/include/gtest/gtest-matchers.h b/googletest/include/gtest/gtest-matchers.h
index a11d016b..bffa00c5 100644
--- a/googletest/include/gtest/gtest-matchers.h
+++ b/googletest/include/gtest/gtest-matchers.h
@@ -303,17 +303,18 @@ class MatcherBase : private MatcherDescriberInterface {
   }
 
  protected:
-  MatcherBase() : vtable_(nullptr) {}
+  MatcherBase() : vtable_(nullptr), buffer_() {}
 
   // Constructs a matcher from its implementation.
   template <typename U>
-  explicit MatcherBase(const MatcherInterface<U>* impl) {
+  explicit MatcherBase(const MatcherInterface<U>* impl)
+      : vtable_(nullptr), buffer_() {
     Init(impl);
   }
 
   template <typename M, typename = typename std::remove_reference<
                             M>::type::is_gtest_matcher>
-  MatcherBase(M&& m) {  // NOLINT
+  MatcherBase(M&& m) : vtable_(nullptr), buffer_() {  // NOLINT
     Init(std::forward<M>(m));
   }