diff --git a/src/integrators/misc/irrcache_proc.h b/src/integrators/misc/irrcache_proc.h
index 34da29b0..74bdda59 100644
--- a/src/integrators/misc/irrcache_proc.h
+++ b/src/integrators/misc/irrcache_proc.h
@@ -35,7 +35,8 @@ public:
 	IrradianceRecordVector() { }
 
 	inline void put(const IrradianceCache::Record *rec) {
-		m_samples.push_back(new IrradianceCache::Record(rec));
+		if (rec)
+			m_samples.push_back(new IrradianceCache::Record(rec));
 	}
 
 	inline size_t size() const {