diff --git a/src/opm/io/eclipse/OutputStream.cpp b/src/opm/io/eclipse/OutputStream.cpp
index 4fa2045d9..0cf8b8eb2 100644
--- a/src/opm/io/eclipse/OutputStream.cpp
+++ b/src/opm/io/eclipse/OutputStream.cpp
@@ -593,6 +593,7 @@ namespace {
         auto ret = std::vector<PaddedOutputString<substrLength>>{};
 
         if (restart.root.empty()) {
+            ret.resize(maxSubstrings);
             return ret;
         }
 
@@ -605,6 +606,7 @@ namespace {
 
             Opm::OpmLog::warning(msg);
 
+            ret.resize(maxSubstrings);
             return ret;
         }
 
@@ -738,7 +740,7 @@ SummarySpecification::write(const Parameters& params)
     // Pretend to be ECLIPSE 100
     smspec.write("INTEHEAD", std::vector<int>{ this->unit_, 100 });
 
-    if (! this->restart_.empty())
+    // if (! this->restart_.empty())
         smspec.write("RESTART", this->restart_);
 
     smspec.write("DIMENS",
diff --git a/tests/test_OutputStream.cpp b/tests/test_OutputStream.cpp
index bdd008b1b..0c303113f 100644
--- a/tests/test_OutputStream.cpp
+++ b/tests/test_OutputStream.cpp
@@ -1863,12 +1863,13 @@ BOOST_AUTO_TEST_CASE(Unformatted_Base)
 
         auto smspec = ::Opm::EclIO::EclFile{fname};
 
-        BOOST_CHECK_MESSAGE(! smspec.hasKey("RESTART"), "SMSPEC File must NOT have 'RESTART'");
+        //BOOST_CHECK_MESSAGE(! smspec.hasKey("RESTART"), "SMSPEC File must NOT have 'RESTART'");
 
         {
             const auto vectors        = smspec.getList();
             const auto expect_vectors = std::vector<Opm::EclIO::EclFile::EclEntry>{
                 Opm::EclIO::EclFile::EclEntry{"INTEHEAD", Opm::EclIO::eclArrType::INTE, 2},
+                Opm::EclIO::EclFile::EclEntry{"RESTART", Opm::EclIO::eclArrType::CHAR, 9},
                 Opm::EclIO::EclFile::EclEntry{"DIMENS", Opm::EclIO::eclArrType::INTE, 6},
                 Opm::EclIO::EclFile::EclEntry{"KEYWORDS", Opm::EclIO::eclArrType::CHAR, 4},
                 Opm::EclIO::EclFile::EclEntry{"WGNAMES", Opm::EclIO::eclArrType::CHAR, 4},
@@ -1974,6 +1975,7 @@ BOOST_AUTO_TEST_CASE(Unformatted_Base)
             const auto vectors        = smspec.getList();
             const auto expect_vectors = std::vector<Opm::EclIO::EclFile::EclEntry>{
                 Opm::EclIO::EclFile::EclEntry{"INTEHEAD", Opm::EclIO::eclArrType::INTE, 2},
+                Opm::EclIO::EclFile::EclEntry{"RESTART", Opm::EclIO::eclArrType::CHAR, 9},
                 Opm::EclIO::EclFile::EclEntry{"DIMENS", Opm::EclIO::eclArrType::INTE, 6},
                 Opm::EclIO::EclFile::EclEntry{"KEYWORDS", Opm::EclIO::eclArrType::CHAR, 4},
                 Opm::EclIO::EclFile::EclEntry{"WGNAMES", Opm::EclIO::eclArrType::CHAR, 4},
@@ -2079,6 +2081,7 @@ BOOST_AUTO_TEST_CASE(Unformatted_Base)
             const auto vectors        = smspec.getList();
             const auto expect_vectors = std::vector<Opm::EclIO::EclFile::EclEntry>{
                 Opm::EclIO::EclFile::EclEntry{"INTEHEAD", Opm::EclIO::eclArrType::INTE, 2},
+                Opm::EclIO::EclFile::EclEntry{"RESTART", Opm::EclIO::eclArrType::CHAR, 9},
                 Opm::EclIO::EclFile::EclEntry{"DIMENS", Opm::EclIO::eclArrType::INTE, 6},
                 Opm::EclIO::EclFile::EclEntry{"KEYWORDS", Opm::EclIO::eclArrType::CHAR, 4},
                 Opm::EclIO::EclFile::EclEntry{"WGNAMES", Opm::EclIO::eclArrType::CHAR, 4},
@@ -2184,6 +2187,7 @@ BOOST_AUTO_TEST_CASE(Unformatted_Base)
             const auto vectors        = smspec.getList();
             const auto expect_vectors = std::vector<Opm::EclIO::EclFile::EclEntry>{
                 Opm::EclIO::EclFile::EclEntry{"INTEHEAD", Opm::EclIO::eclArrType::INTE, 2},
+                Opm::EclIO::EclFile::EclEntry{"RESTART", Opm::EclIO::eclArrType::CHAR, 9},
                 Opm::EclIO::EclFile::EclEntry{"DIMENS", Opm::EclIO::eclArrType::INTE, 6},
                 Opm::EclIO::EclFile::EclEntry{"KEYWORDS", Opm::EclIO::eclArrType::CHAR, 4},
                 Opm::EclIO::EclFile::EclEntry{"WGNAMES", Opm::EclIO::eclArrType::CHAR, 4},
@@ -2296,9 +2300,11 @@ BOOST_AUTO_TEST_CASE(Formatted_Restarted)
 
         auto smspec = ::Opm::EclIO::EclFile{fname};
 
+#if 0
         BOOST_CHECK_MESSAGE(! smspec.hasKey("RESTART"),
                             "SMSPEC file must NOT have RESTART "
                             "data if root name is too long");
+#endif
     }
 
     // ========================= METRIC =======================