diff --git a/src/opm/parser/eclipse/EclipseState/SummaryConfig/SummaryConfig.cpp b/src/opm/parser/eclipse/EclipseState/SummaryConfig/SummaryConfig.cpp
index 6a130d8e4..746f4d535 100644
--- a/src/opm/parser/eclipse/EclipseState/SummaryConfig/SummaryConfig.cpp
+++ b/src/opm/parser/eclipse/EclipseState/SummaryConfig/SummaryConfig.cpp
@@ -170,25 +170,23 @@ inline void keywordW( std::vector< ERT::smspec_node >& list,
                       const Schedule& schedule ) {
 
     const auto type = ECL_SMSPEC_WELL_VAR;
-    static const std::vector< std::string > wildcard = { "*" };
-
     const auto hasValue = []( const DeckKeyword& kw ) {
         return kw.getDataRecord().getDataItem().hasValue( 0 );
     };
 
-    const auto& patterns = keyword.size() > 0 && hasValue( keyword )
-                         ? keyword.getStringData()
-                         : wildcard;
+    if (keyword.size() && hasValue(keyword)) {
+        for( const std::string& pattern : keyword.getStringData()) {
+            auto wells = schedule.getWellsMatching( pattern );
 
-    for( const std::string& pattern : patterns ) {
-        auto wells = schedule.getWellsMatching( pattern );
+            if( wells.empty() )
+                handleMissingWell( parseContext, keyword.name(), pattern );
 
-        if( wells.empty() )
-            handleMissingWell( parseContext, keyword.name(), pattern );
-
-        for( const auto* well : wells )
-            list.emplace_back( type, well->name(), keyword.name() );
-    }
+            for( const auto* well : wells )
+                list.emplace_back( type, well->name(), keyword.name() );
+        }
+    } else
+        for (const auto* well : schedule.getWells())
+            list.emplace_back(type, well->name(), keyword.name());
 }
 
 inline void keywordG( std::vector< ERT::smspec_node >& list,
diff --git a/tests/parser/SummaryConfigTests.cpp b/tests/parser/SummaryConfigTests.cpp
index 6679ec1c1..5fdc8b351 100644
--- a/tests/parser/SummaryConfigTests.cpp
+++ b/tests/parser/SummaryConfigTests.cpp
@@ -30,6 +30,33 @@
 
 using namespace Opm;
 
+static Deck createDeck_no_wells( const std::string& summary ) {
+    Opm::Parser parser;
+    std::string input =
+            "START             -- 0 \n"
+            "10 MAI 2007 / \n"
+            "RUNSPEC\n"
+            "\n"
+            "DIMENS\n"
+            " 10 10 10 /\n"
+            "REGDIMS\n"
+            "  3/\n"
+            "GRID\n"
+            "DXV \n 10*400 /\n"
+            "DYV \n 10*400 /\n"
+            "DZV \n 10*400 /\n"
+            "TOPS \n 100*2202 / \n"
+            "REGIONS\n"
+            "FIPNUM\n"
+            "200*1 300*2 500*3 /\n"
+            "SCHEDULE\n"
+            "SUMMARY\n"
+            + summary;
+
+    return parser.parseString(input, ParseContext());
+}
+
+
 static Deck createDeck( const std::string& summary ) {
     Opm::Parser parser;
     std::string input =
@@ -118,6 +145,17 @@ BOOST_AUTO_TEST_CASE(wells_all) {
             names.begin(), names.end() );
 }
 
+BOOST_AUTO_TEST_CASE(wells_missingI) {
+    ParseContext parseContext;
+    const auto input = "WWCT\n/\n";
+    auto deck = createDeck_no_wells( input );
+    parseContext.update(ParseContext::SUMMARY_UNKNOWN_WELL, InputError::THROW_EXCEPTION);
+    EclipseState state( deck, parseContext );
+    Schedule schedule(deck, state.getInputGrid(), state.get3DProperties(), state.runspec().phases(), parseContext);
+    BOOST_CHECK_NO_THROW( SummaryConfig( deck, schedule, state.getTableManager( ), parseContext ));
+}
+
+
 BOOST_AUTO_TEST_CASE(wells_select) {
     const auto input = "WWCT\n'W_1' 'WX2' /\n";
     const auto summary = createSummary( input );