diff --git a/Lib/fontTools/feaLib/builder.py b/Lib/fontTools/feaLib/builder.py
index 9e4c5ee4a..95eabe9b7 100644
--- a/Lib/fontTools/feaLib/builder.py
+++ b/Lib/fontTools/feaLib/builder.py
@@ -1503,6 +1503,7 @@ class ClassPairPosSubtableBuilder(object):
         st = otl.buildPairPosClassesSubtable(self.values_,
                                              self.builder_.glyphMap)
         self.subtables_.append(st)
+        self.forceSubtableBreak_ = False
 
 
 class PairPosBuilder(LookupBuilder):
diff --git a/Tests/feaLib/data/PairPosSubtable.fea b/Tests/feaLib/data/PairPosSubtable.fea
index 6d3d1411f..1fcc1eba2 100644
--- a/Tests/feaLib/data/PairPosSubtable.fea
+++ b/Tests/feaLib/data/PairPosSubtable.fea
@@ -10,6 +10,7 @@ lookup kernlookup {
     subtable;
     pos @group1 @group2 -12;
     subtable;
+    pos @group1 @group3 -10;
     pos @group3 @group2 -20;
 } kernlookup;
 
diff --git a/Tests/feaLib/data/PairPosSubtable.ttx b/Tests/feaLib/data/PairPosSubtable.ttx
index 1dde34947..4b76f991f 100644
--- a/Tests/feaLib/data/PairPosSubtable.ttx
+++ b/Tests/feaLib/data/PairPosSubtable.ttx
@@ -84,26 +84,43 @@
         </PairPos>
         <PairPos index="2" Format="2">
           <Coverage>
+            <Glyph value="b"/>
+            <Glyph value="o"/>
             <Glyph value="v"/>
             <Glyph value="w"/>
           </Coverage>
           <ValueFormat1 value="4"/>
           <ValueFormat2 value="0"/>
           <ClassDef1>
+            <ClassDef glyph="b" class="1"/>
+            <ClassDef glyph="o" class="1"/>
           </ClassDef1>
           <ClassDef2>
-            <ClassDef glyph="c" class="1"/>
-            <ClassDef glyph="d" class="1"/>
+            <ClassDef glyph="c" class="2"/>
+            <ClassDef glyph="d" class="2"/>
+            <ClassDef glyph="v" class="1"/>
+            <ClassDef glyph="w" class="1"/>
           </ClassDef2>
-          <!-- Class1Count=1 -->
-          <!-- Class2Count=2 -->
+          <!-- Class1Count=2 -->
+          <!-- Class2Count=3 -->
           <Class1Record index="0">
             <Class2Record index="0">
             </Class2Record>
             <Class2Record index="1">
+            </Class2Record>
+            <Class2Record index="2">
               <Value1 XAdvance="-20"/>
             </Class2Record>
           </Class1Record>
+          <Class1Record index="1">
+            <Class2Record index="0">
+            </Class2Record>
+            <Class2Record index="1">
+              <Value1 XAdvance="-10"/>
+            </Class2Record>
+            <Class2Record index="2">
+            </Class2Record>
+          </Class1Record>
         </PairPos>
       </Lookup>
     </LookupList>