diff --git a/sci-libs/trilinos/trilinos-13.2.0.ebuild b/sci-libs/trilinos/trilinos-13.2.0.ebuild
index 2db1ff26728fa..b4df7074f9649 100644
--- a/sci-libs/trilinos/trilinos-13.2.0.ebuild
+++ b/sci-libs/trilinos/trilinos-13.2.0.ebuild
@@ -182,6 +182,7 @@ src_configure() {
 	local mycmakeargs+=(
 		-DAmesos2_ENABLE_LAPACK=ON
 		-DAmesos2_ENABLE_MUMPS=OFF
+		-DTpetra_INST_SERIAL=ON
 	)
 
 	use eigen && \
diff --git a/sci-libs/trilinos/trilinos-13.4.0-r2.ebuild b/sci-libs/trilinos/trilinos-13.4.0-r3.ebuild
similarity index 99%
rename from sci-libs/trilinos/trilinos-13.4.0-r2.ebuild
rename to sci-libs/trilinos/trilinos-13.4.0-r3.ebuild
index d741f0af1639a..9996b79bd35d4 100644
--- a/sci-libs/trilinos/trilinos-13.4.0-r2.ebuild
+++ b/sci-libs/trilinos/trilinos-13.4.0-r3.ebuild
@@ -182,6 +182,7 @@ src_configure() {
 	local mycmakeargs+=(
 		-DAmesos2_ENABLE_LAPACK=ON
 		-DAmesos2_ENABLE_MUMPS=OFF
+		-DTpetra_INST_SERIAL=ON
 	)
 
 	use eigen && \