diff --git a/Tests/varLib/data/FeatureVarsCustomTag.designspace b/Tests/varLib/data/FeatureVarsCustomTag.designspace
index 45b06f30c..ef24ccfdf 100644
--- a/Tests/varLib/data/FeatureVarsCustomTag.designspace
+++ b/Tests/varLib/data/FeatureVarsCustomTag.designspace
@@ -71,7 +71,7 @@
     <lib>
         <dict>
             <key>com.github.fonttools.varLib.featureVarsFeatureTag</key>
-            <string>calt</string>
+            <string>rclt,calt</string>
         </dict>
     </lib>
 </designspace>
diff --git a/Tests/varLib/data/test_results/FeatureVarsCustomTag.ttx b/Tests/varLib/data/test_results/FeatureVarsCustomTag.ttx
index 3f9e1e080..5ad62a98b 100644
--- a/Tests/varLib/data/test_results/FeatureVarsCustomTag.ttx
+++ b/Tests/varLib/data/test_results/FeatureVarsCustomTag.ttx
@@ -33,21 +33,28 @@
         <Script>
           <DefaultLangSys>
             <ReqFeatureIndex value="65535"/>
-            <!-- FeatureCount=1 -->
+            <!-- FeatureCount=2 -->
             <FeatureIndex index="0" value="0"/>
+            <FeatureIndex index="1" value="1"/>
           </DefaultLangSys>
           <!-- LangSysCount=0 -->
         </Script>
       </ScriptRecord>
     </ScriptList>
     <FeatureList>
-      <!-- FeatureCount=1 -->
+      <!-- FeatureCount=2 -->
       <FeatureRecord index="0">
         <FeatureTag value="calt"/>
         <Feature>
           <!-- LookupCount=0 -->
         </Feature>
       </FeatureRecord>
+      <FeatureRecord index="1">
+        <FeatureTag value="rclt"/>
+        <Feature>
+          <!-- LookupCount=0 -->
+        </Feature>
+      </FeatureRecord>
     </FeatureList>
     <LookupList>
       <!-- LookupCount=3 -->
@@ -95,7 +102,7 @@
         </ConditionSet>
         <FeatureTableSubstitution>
           <Version value="0x00010000"/>
-          <!-- SubstitutionCount=1 -->
+          <!-- SubstitutionCount=2 -->
           <SubstitutionRecord index="0">
             <FeatureIndex value="0"/>
             <Feature>
@@ -104,6 +111,14 @@
               <LookupListIndex index="1" value="1"/>
             </Feature>
           </SubstitutionRecord>
+          <SubstitutionRecord index="1">
+            <FeatureIndex value="1"/>
+            <Feature>
+              <!-- LookupCount=2 -->
+              <LookupListIndex index="0" value="0"/>
+              <LookupListIndex index="1" value="1"/>
+            </Feature>
+          </SubstitutionRecord>
         </FeatureTableSubstitution>
       </FeatureVariationRecord>
       <FeatureVariationRecord index="1">
@@ -122,7 +137,7 @@
         </ConditionSet>
         <FeatureTableSubstitution>
           <Version value="0x00010000"/>
-          <!-- SubstitutionCount=1 -->
+          <!-- SubstitutionCount=2 -->
           <SubstitutionRecord index="0">
             <FeatureIndex value="0"/>
             <Feature>
@@ -130,6 +145,13 @@
               <LookupListIndex index="0" value="2"/>
             </Feature>
           </SubstitutionRecord>
+          <SubstitutionRecord index="1">
+            <FeatureIndex value="1"/>
+            <Feature>
+              <!-- LookupCount=1 -->
+              <LookupListIndex index="0" value="2"/>
+            </Feature>
+          </SubstitutionRecord>
         </FeatureTableSubstitution>
       </FeatureVariationRecord>
       <FeatureVariationRecord index="2">
@@ -143,7 +165,7 @@
         </ConditionSet>
         <FeatureTableSubstitution>
           <Version value="0x00010000"/>
-          <!-- SubstitutionCount=1 -->
+          <!-- SubstitutionCount=2 -->
           <SubstitutionRecord index="0">
             <FeatureIndex value="0"/>
             <Feature>
@@ -151,6 +173,13 @@
               <LookupListIndex index="0" value="1"/>
             </Feature>
           </SubstitutionRecord>
+          <SubstitutionRecord index="1">
+            <FeatureIndex value="1"/>
+            <Feature>
+              <!-- LookupCount=1 -->
+              <LookupListIndex index="0" value="1"/>
+            </Feature>
+          </SubstitutionRecord>
         </FeatureTableSubstitution>
       </FeatureVariationRecord>
       <FeatureVariationRecord index="3">
@@ -164,7 +193,7 @@
         </ConditionSet>
         <FeatureTableSubstitution>
           <Version value="0x00010000"/>
-          <!-- SubstitutionCount=1 -->
+          <!-- SubstitutionCount=2 -->
           <SubstitutionRecord index="0">
             <FeatureIndex value="0"/>
             <Feature>
@@ -172,6 +201,13 @@
               <LookupListIndex index="0" value="0"/>
             </Feature>
           </SubstitutionRecord>
+          <SubstitutionRecord index="1">
+            <FeatureIndex value="1"/>
+            <Feature>
+              <!-- LookupCount=1 -->
+              <LookupListIndex index="0" value="0"/>
+            </Feature>
+          </SubstitutionRecord>
         </FeatureTableSubstitution>
       </FeatureVariationRecord>
     </FeatureVariations>