diff --git a/src/CCLAboveFilter.cpp b/src/CCLAboveFilter.cpp
index 346243c..99b6b2e 100644
--- a/src/CCLAboveFilter.cpp
+++ b/src/CCLAboveFilter.cpp
@@ -75,7 +75,7 @@ void VS_CC excludeCCLAboveCreate(const VSMap* in, VSMap* out, void* userData, VS
 		d->ccl_type = cv::CCL_DEFAULT;
 	else {
 		if (ccl_type < -1 || ccl_type > 5) {
-			vsapi->mapSetError(out, "ExcludeCCLAbove: ccl_type must be between -1 and 6.");
+			vsapi->mapSetError(out, "ExcludeCCLAbove: ccl_type must be between -1 and 5.");
 			vsapi->freeNode(d->node);
 			return;
 		}
diff --git a/src/CCLGetStats.cpp b/src/CCLGetStats.cpp
index 5acad75..af34540 100644
--- a/src/CCLGetStats.cpp
+++ b/src/CCLGetStats.cpp
@@ -85,7 +85,7 @@ void VS_CC getCCLStatsCreate(const VSMap* in, VSMap* out, void* userData, VSCore
 		d->ccl_type = cv::CCL_DEFAULT;
 	else {
 		if (ccl_type < -1 || ccl_type > 5) {
-			vsapi->mapSetError(out, "GetCCLStats: ccl_type must be between -1 and 6.");
+			vsapi->mapSetError(out, "GetCCLStats: ccl_type must be between -1 and 5.");
 			vsapi->freeNode(d->node);
 			return;
 		}
diff --git a/src/CCLUnderFilter.cpp b/src/CCLUnderFilter.cpp
index 7cddc31..59a8eab 100644
--- a/src/CCLUnderFilter.cpp
+++ b/src/CCLUnderFilter.cpp
@@ -75,7 +75,7 @@ void VS_CC excludeCCLUnderCreate(const VSMap* in, VSMap* out, void* userData, VS
 		d->ccl_type = cv::CCL_DEFAULT;
 	else {
 		if (ccl_type < -1 || ccl_type > 5) {
-			vsapi->mapSetError(out, "ExcludeCCLUnder: ccl_type must be between -1 and 6.");
+			vsapi->mapSetError(out, "ExcludeCCLUnder: ccl_type must be between -1 and 5.");
 			vsapi->freeNode(d->node);
 			return;
 		}