diff --git a/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.3.ebuild b/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.3.ebuild
index 0fc98049a0..0f9d54de35 100644
--- a/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.3.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.3.ebuild
@@ -9,7 +9,7 @@ EAPI=8
 # (find the one for the current release then subscribe to it +
 # any subsequent ones linked within so you're covered for a while.)
 
-VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/gnupg.asc
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/gnupg.asc
 inherit toolchain-funcs verify-sig libtool
 
 DESCRIPTION="X.509 and CMS (PKCS#7) library"
diff --git a/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.4-r1.ebuild b/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.4-r1.ebuild
index 0100109ae8..c6d5be5069 100644
--- a/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.4-r1.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.4-r1.ebuild
@@ -9,7 +9,7 @@ EAPI=8
 # (find the one for the current release then subscribe to it +
 # any subsequent ones linked within so you're covered for a while.)
 
-VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/gnupg.asc
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/gnupg.asc
 # in-source builds are not supported: https://dev.gnupg.org/T6313#166339
 inherit toolchain-funcs out-of-source verify-sig libtool
 
diff --git a/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.4.ebuild b/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.4.ebuild
index ebb33d4508..5433aee217 100644
--- a/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.4.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-libs/libksba/libksba-1.6.4.ebuild
@@ -9,7 +9,7 @@ EAPI=8
 # (find the one for the current release then subscribe to it +
 # any subsequent ones linked within so you're covered for a while.)
 
-VERIFY_SIG_OPENPGP_KEY_PATH="${BROOT}"/usr/share/openpgp-keys/gnupg.asc
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/gnupg.asc
 inherit toolchain-funcs verify-sig libtool
 
 DESCRIPTION="X.509 and CMS (PKCS#7) library"