diff --git a/cmake/LibsystemdExternalProject.cmake b/cmake/LibsystemdExternalProject.cmake
index 09dd102..40911c2 100644
--- a/cmake/LibsystemdExternalProject.cmake
+++ b/cmake/LibsystemdExternalProject.cmake
@@ -46,7 +46,7 @@ ExternalProject_Add(LibsystemdBuildProject
                     GIT_SHALLOW       1
                     UPDATE_COMMAND    ""
                     CONFIGURE_COMMAND ${CMAKE_COMMAND} -E remove <BINARY_DIR>/*
-                              COMMAND ${MESON} --prefix=<INSTALL_DIR> --buildtype=${LIBSYSTEMD_BUILD_TYPE} -Dstatic-libsystemd=pic -Dselinux=false <SOURCE_DIR> <BINARY_DIR> ${LIBSYSTEMD_EXTRA_CONFIG_OPTS}
+                              COMMAND ${MESON} --prefix=<INSTALL_DIR> --buildtype=${LIBSYSTEMD_BUILD_TYPE} -Drootprefix=<INSTALL_DIR> -Dstatic-libsystemd=pic -Dselinux=false <SOURCE_DIR> <BINARY_DIR> ${LIBSYSTEMD_EXTRA_CONFIG_OPTS}
                     BUILD_COMMAND     ${BUILD_VERSION_H}
                           COMMAND     ${NINJA} -C <BINARY_DIR> libsystemd.a
                     BUILD_ALWAYS      0
diff --git a/tests/integrationtests/DBusStandardInterfacesTests.cpp b/tests/integrationtests/DBusStandardInterfacesTests.cpp
index a291be3..6381587 100644
--- a/tests/integrationtests/DBusStandardInterfacesTests.cpp
+++ b/tests/integrationtests/DBusStandardInterfacesTests.cpp
@@ -201,7 +201,13 @@ TEST_F(SdbusTestObject, EmitsInterfacesAddedSignalForAllObjectInterfaces)
             , const std::map<std::string, std::map<std::string, sdbus::Variant>>& interfacesAndProperties )
     {
         EXPECT_THAT(objectPath, Eq(OBJECT_PATH));
+#if LIBSYSTEMD_VERSION<=250
         EXPECT_THAT(interfacesAndProperties, SizeIs(5)); // INTERFACE_NAME + 4 standard interfaces
+#else
+        // Since systemd v251, ObjectManager standard interface is not listed among the interfaces
+        // if the object does not have object manager functionality explicitly enabled.
+        EXPECT_THAT(interfacesAndProperties, SizeIs(4)); // INTERFACE_NAME + 3 standard interfaces
+#endif
 #if LIBSYSTEMD_VERSION<=244
         // Up to sd-bus v244, all properties are added to the list, i.e. `state', `action', and `blocking' in this case.
         EXPECT_THAT(interfacesAndProperties.at(INTERFACE_NAME), SizeIs(3));
@@ -248,7 +254,13 @@ TEST_F(SdbusTestObject, EmitsInterfacesRemovedSignalForAllObjectInterfaces)
                                                                           , const std::vector<std::string>& interfaces )
     {
         EXPECT_THAT(objectPath, Eq(OBJECT_PATH));
+#if LIBSYSTEMD_VERSION<=250
         ASSERT_THAT(interfaces, SizeIs(5)); // INTERFACE_NAME + 4 standard interfaces
+#else
+        // Since systemd v251, ObjectManager standard interface is not listed among the interfaces
+        // if the object does not have object manager functionality explicitly enabled.
+        ASSERT_THAT(interfaces, SizeIs(4)); // INTERFACE_NAME + 3 standard interfaces
+#endif
         signalReceived = true;
     };