diff --git a/RResolver/RAlgorithmsShort.h b/RResolver/RAlgorithmsShort.h
index 51ae41f0e..326647026 100644
--- a/RResolver/RAlgorithmsShort.h
+++ b/RResolver/RAlgorithmsShort.h
@@ -83,7 +83,7 @@ class Support
 {
   public:
 
-	enum class UnknownReason : unsigned {
+	enum class UnknownReason : uint8_t {
 		UNDETERMINED = 0, // Not yet processed
 		TOO_MANY_COMBINATIONS, // Branching out exploded beyond a threshold
 		OVER_MAX_TESTS, // Planned tests was above the threshold
@@ -102,13 +102,15 @@ class Support
 	Support(int calculatedTests, UnknownReason unknownReason)
 	  : found(-1)
 	  , tests(-1)
-	  , calculatedTests(calculatedTests)
 		, unknownReason(unknownReason)
 	{
 		assert(calculatedTests >= 0);
+		if (calculatedTests > std::numeric_limits<decltype(this->calculatedTests)>::max()) { this->calculatedTests = std::numeric_limits<decltype(this->calculatedTests)>::max(); } else {
+			this->calculatedTests = calculatedTests;
+		}
 	}
 
-	Support(int found, int tests)
+	Support(int8_t found, int8_t tests)
 	  : found(found)
 	  , tests(tests)
 	{
@@ -117,14 +119,16 @@ class Support
 		assert(calculatedTests == -1);
 	}
 
-	Support(int found, int tests, int calculatedTests)
+	Support(int8_t found, int8_t tests, int calculatedTests)
 	  : found(found)
 	  , tests(tests)
-	  , calculatedTests(calculatedTests)
 	{
 		assert(found >= 0);
 		assert(tests > 0);
 		assert(calculatedTests >= 0);
+		if (calculatedTests > std::numeric_limits<decltype(this->calculatedTests)>::max()) { this->calculatedTests = std::numeric_limits<decltype(this->calculatedTests)>::max(); } else {
+			this->calculatedTests = calculatedTests;
+		}
 	}
 
 	bool unknown() const { return tests == -1; }
@@ -141,9 +145,9 @@ class Support
 
 	bool operator<(const Support& s) { return found < s.found; }
 
-	int found = -1;
-	int tests = -1;
-	int calculatedTests = -1;
+	int8_t found = -1;
+	int8_t tests = -1;
+	int8_t calculatedTests = -1;
 	UnknownReason unknownReason = UnknownReason::UNDETERMINED;
 };
 
diff --git a/RResolver/RResolverShort.cpp b/RResolver/RResolverShort.cpp
index 418fa7823..4195a296d 100644
--- a/RResolver/RResolverShort.cpp
+++ b/RResolver/RResolverShort.cpp
@@ -48,7 +48,7 @@ static const char USAGE_MESSAGE[] =
     "                              Histograms are omitted if no prefix is given."
     "  -t, --threshold=N           set path support threshold to N. [4]"
     "  -x, --extract=N             extract N rmers per read. [4]"
-    "  -m, --min-tests=N           set minimum number of sliding window moves to N. [20]"
+    "  -m, --min-tests=N           set minimum number of sliding window moves to N. Maximum value is 127. [20]"
     "  -n, --branching=N           set maximum number of branching paths to N. [75]"
 	"  -r, --rmer=N                explicitly set r value (k value used by rresolver)."
 	"                              The number of set r values should be equalto the number of read sizes."