diff --git a/src/integrators/path/path.cpp b/src/integrators/path/path.cpp
index 006c68ee..79258939 100644
--- a/src/integrators/path/path.cpp
+++ b/src/integrators/path/path.cpp
@@ -162,7 +162,7 @@ public:
 			/* Russian roulette - Possibly stop the recursion */
 			if (rRec.depth >= m_rrDepth) {
 				/* Assuming that BSDF importance sampling is perfect,
-				   the following should equal the maximum albedo
+				   'bsdfVal.max()' should equal the maximum albedo
 				   over all spectral samples */
 				Float approxAlbedo = std::min((Float) 0.9f, bsdfVal.max());
 				if (rRec.nextSample1D() > approxAlbedo)
diff --git a/src/integrators/path/volpath.cpp b/src/integrators/path/volpath.cpp
index c236a26e..3ba27287 100644
--- a/src/integrators/path/volpath.cpp
+++ b/src/integrators/path/volpath.cpp
@@ -274,7 +274,7 @@ public:
 				/* Russian roulette - Possibly stop the recursion */
 				if (rRec.depth >= m_rrDepth) {
 					/* Assuming that BSDF importance sampling is perfect,
-					   the following should equal the maximum albedo
+					   'bsdfVal.max()' should equal the maximum albedo
 					   over all spectral samples */
 					Float approxAlbedo = std::min((Float) 0.9f, bsdfVal.max());
 					if (rRec.nextSample1D() > approxAlbedo)
diff --git a/src/integrators/path/volpath_simple.cpp b/src/integrators/path/volpath_simple.cpp
index 19935a80..164f07e7 100644
--- a/src/integrators/path/volpath_simple.cpp
+++ b/src/integrators/path/volpath_simple.cpp
@@ -209,7 +209,7 @@ public:
 				/* Russian roulette - Possibly stop the recursion */
 				if (rRec.depth >= m_rrDepth) {
 					/* Assuming that BSDF importance sampling is perfect,
-					   the following should equal the maximum albedo
+					   'bsdfVal.max()' should equal the maximum albedo
 					   over all spectral samples */
 					Float approxAlbedo = std::min((Float) 0.9, bsdfVal.max());
 					if (rRec.nextSample1D() > approxAlbedo)