diff --git a/SimpleTests/MatrixTests/MatVecMultNDPerm.cpp b/SimpleTests/MatrixTests/MatVecMultNDPerm.cpp
index 7390673c7148d64cfce0a79ed501227fd15bb773..00b32c5e4925100bc9ca1b0897cc7b389a8bf8ef 100644
--- a/SimpleTests/MatrixTests/MatVecMultNDPerm.cpp
+++ b/SimpleTests/MatrixTests/MatVecMultNDPerm.cpp
@@ -72,7 +72,7 @@ int main(int argc, char *argv[])
 	TCLAP::ValueArg<std::string> output_arg("o", "output", "output file", false, "", "string");
 	cmd.add( output_arg );
 
-	TCLAP::ValueArg<unsigned> verbosity_arg("v", "verbose", "level of verbosity [0 very low information, 1 much information]", false, 0, "string");
+	TCLAP::ValueArg<bool> verbosity_arg("v", "verbose", "level of verbosity [0 very low information, 1 much information]", false, 0, "string");
 	cmd.add( verbosity_arg );
 
 	cmd.parse( argc, argv );
diff --git a/SimpleTests/MatrixTests/MatVecMultNDPermOpenMP.cpp b/SimpleTests/MatrixTests/MatVecMultNDPermOpenMP.cpp
index 0077a6279f055f62fd8f49aad496aac96b3bf89c..67bb8a91b6891f6af9599c32c5d08bd7be4c0579 100644
--- a/SimpleTests/MatrixTests/MatVecMultNDPermOpenMP.cpp
+++ b/SimpleTests/MatrixTests/MatVecMultNDPermOpenMP.cpp
@@ -75,7 +75,7 @@ int main(int argc, char *argv[])
 	TCLAP::ValueArg<std::string> output_arg("o", "output", "output file", false, "", "string");
 	cmd.add( output_arg );
 
-	TCLAP::ValueArg<unsigned> verbosity_arg("v", "verbose", "level of verbosity [0 very low information, 1 much information]", false, 0, "string");
+	TCLAP::ValueArg<bool> verbosity_arg("v", "verbose", "level of verbosity [0 very low information, 1 much information]", false, 0, "string");
 	cmd.add( verbosity_arg );
 
 	cmd.parse( argc, argv );
diff --git a/SimpleTests/MatrixTests/MatVecMultPthreads.cpp b/SimpleTests/MatrixTests/MatVecMultPthreads.cpp
index dfafb120de0b572623679ae5ed09e8766b37fd4e..6c7a09a11e4383551e64b0101f6e5124599d075e 100644
--- a/SimpleTests/MatrixTests/MatVecMultPthreads.cpp
+++ b/SimpleTests/MatrixTests/MatVecMultPthreads.cpp
@@ -76,7 +76,7 @@ int main(int argc, char *argv[])
 	TCLAP::ValueArg<std::string> output_arg("o", "output", "output file", false, "", "string");
 	cmd.add( output_arg );
 
-	TCLAP::ValueArg<unsigned> verbosity_arg("v", "verbose", "level of verbosity [0 very low information, 1 much information]", false, 0, "string");
+	TCLAP::ValueArg<bool> verbosity_arg("v", "verbose", "level of verbosity [0 very low information, 1 much information]", false, 0, "string");
 	cmd.add( verbosity_arg );
 
 	cmd.parse( argc, argv );