diff --git a/dev-libs/libgit2/libgit2-1.7.2.ebuild b/dev-libs/libgit2/libgit2-1.7.2.ebuild
index 0189210875a8f..e6996dbfbafa7 100644
--- a/dev-libs/libgit2/libgit2-1.7.2.ebuild
+++ b/dev-libs/libgit2/libgit2-1.7.2.ebuild
@@ -44,6 +44,9 @@ src_configure() {
 		-DUSE_HTTP_PARSER=system
 		-DREGEX_BACKEND=pcre2
 	)
+	# https://bugs.gentoo.org/927821
+	append-flags -fno-strict-aliasing
+	filter-lto
 	# https://bugs.gentoo.org/925207
 	append-lfs-flags
 	cmake_src_configure
diff --git a/dev-libs/libgit2/libgit2-1.8.0.ebuild b/dev-libs/libgit2/libgit2-1.8.0.ebuild
index 9f21956dbf5ba..c7a83421adc01 100644
--- a/dev-libs/libgit2/libgit2-1.8.0.ebuild
+++ b/dev-libs/libgit2/libgit2-1.8.0.ebuild
@@ -44,6 +44,9 @@ src_configure() {
 		-DUSE_HTTP_PARSER=system
 		-DREGEX_BACKEND=pcre2
 	)
+	# https://bugs.gentoo.org/927821
+	append-flags -fno-strict-aliasing
+	filter-lto
 	# https://bugs.gentoo.org/925207
 	append-lfs-flags
 	cmake_src_configure