diff --git a/src/integrators/misc/irrcache.cpp b/src/integrators/misc/irrcache.cpp
index 7508078e..4573f250 100644
--- a/src/integrators/misc/irrcache.cpp
+++ b/src/integrators/misc/irrcache.cpp
@@ -60,7 +60,7 @@ public:
 		/* Multiplicative factor for the quality parameter following an
 		   overture pass. This can be used to interpolate amongst more
 		   samples, creating a visually smoother result. Must be
-		   1 or less.  */
+		   1 or less. */
 		m_qualityAdjustment = props.getFloat("qualityAdjustment", .5f);
 		/* If set to true, sample locations will be visually highlighted */
 		m_debug = props.getBoolean("debug", false);
@@ -82,7 +82,7 @@ public:
 		/* If set to false, direct illumination will be suppressed - 
 		   useful for checking the interpolation quality */
 		m_direct = props.getBoolean("direct", true);
-			
+
 		Assert(m_influenceMax > m_influenceMin);
 		Assert(m_influenceMax > 0 && m_influenceMax < 1);
 		Assert(m_influenceMin > 0 && m_influenceMin < 1);
@@ -229,7 +229,7 @@ public:
 		if (rRec.rayIntersect(ray)) {
 			const BSDF *bsdf = its.getBSDF(ray);
 
-			if (bsdf && bsdf->getType() == BSDF::EDiffuseReflection && 
+			if (bsdf && (bsdf->getType() & BSDF::EAll) == BSDF::EDiffuseReflection && 
 					(rRec.type & RadianceQueryRecord::EIndirectSurfaceRadiance)) {
 				Spectrum E;
 				if (!m_irrCache->get(its, E)) {
diff --git a/src/integrators/misc/irrcache_proc.cpp b/src/integrators/misc/irrcache_proc.cpp
index 2fb5d025..693c69fe 100644
--- a/src/integrators/misc/irrcache_proc.cpp
+++ b/src/integrators/misc/irrcache_proc.cpp
@@ -109,7 +109,7 @@ public:
 					const BSDF *bsdf = its.shape->getBSDF();
 					if (!bsdf)
 						continue;
-					if (!bsdf->getType() == BSDF::EDiffuseReflection)
+					if ((bsdf->getType() & BSDF::EAll) != BSDF::EDiffuseReflection)
 						continue;
 					if (m_irrCache->get(its, E))
 						continue;