--- a/js/src/jit/SharedIC.cpp
+++ b/js/src/jit/SharedIC.cpp
@@ -669,16 +669,18 @@ ICTypeMonitor_Fallback::resetMonitorStub
         lastMonitorStubPtrAddr_ = icEntry_->addressOfFirstStub();
     }
 }
 
 ICMonitoredStub::ICMonitoredStub(Kind kind, JitCode* stubCode, ICStub* firstMonitorStub)
   : ICStub(kind, ICStub::Monitored, stubCode),
     firstMonitorStub_(firstMonitorStub)
 {
+    // In order to silence Coverity - null pointer dereference checker
+    MOZ_ASSERT(firstMonitorStub_);
     // If the first monitored stub is a ICTypeMonitor_Fallback stub, then
     // double check that _its_ firstMonitorStub is the same as this one.
     MOZ_ASSERT_IF(firstMonitorStub_->isTypeMonitor_Fallback(),
                   firstMonitorStub_->toTypeMonitor_Fallback()->firstMonitorStub() ==
                      firstMonitorStub_);
 }
 
 bool