--- a/js/src/jit/FlowAliasAnalysis.cpp
+++ b/js/src/jit/FlowAliasAnalysis.cpp
@@ -810,17 +810,17 @@ FlowAliasAnalysis::saveLoadDependency(MD
 }
 
 bool
 FlowAliasAnalysis::saveStoreDependency(MDefinition* ins, BlockStoreInfo& prevStores)
 {
     // To form a store dependency chain, we store the previous last dependencies
     // in the current store.
 
-    StoreDependency* dependency = new(alloc()) StoreDependency(alloc());
+    StoreDependency* dependency = new(alloc().fallible()) StoreDependency(alloc());
     if (!dependency)
         return false;
     if (!dependency->init(prevStores))
         return false;
 
     ins->setStoreDependency(dependency);
     return true;
 }