diff --git a/apps/openmw/mwscript/cellextensions.cpp b/apps/openmw/mwscript/cellextensions.cpp
index ac175634bd..2e2e9b6985 100644
--- a/apps/openmw/mwscript/cellextensions.cpp
+++ b/apps/openmw/mwscript/cellextensions.cpp
@@ -142,6 +142,11 @@ namespace MWScript
 
                 virtual void execute (Interpreter::Runtime& runtime)
                 {
+                    if (!MWBase::Environment::get().getWorld()->getPlayerPtr().isInCell())
+                    {
+                        runtime.push(0.f);
+                        return;
+                    }
                     MWWorld::CellStore *cell = MWBase::Environment::get().getWorld()->getPlayerPtr().getCell();
                     if (cell->getCell()->hasWater())
                         runtime.push (cell->getWaterLevel());
@@ -158,6 +163,11 @@ namespace MWScript
                 {
                     Interpreter::Type_Float level = runtime[0].mFloat;
 
+                    if (!MWBase::Environment::get().getWorld()->getPlayerPtr().isInCell())
+                    {
+                        return;
+                    }
+
                     MWWorld::CellStore *cell = MWBase::Environment::get().getWorld()->getPlayerPtr().getCell();
 
                     if (cell->getCell()->isExterior())
@@ -176,6 +186,11 @@ namespace MWScript
                 {
                     Interpreter::Type_Float level = runtime[0].mFloat;
 
+                    if (!MWBase::Environment::get().getWorld()->getPlayerPtr().isInCell())
+                    {
+                        return;
+                    }
+
                     MWWorld::CellStore *cell = MWBase::Environment::get().getWorld()->getPlayerPtr().getCell();
 
                     if (cell->getCell()->isExterior())