diff --git a/.gitignore b/.gitignore
index 01a1447..4d8142e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,7 @@
 # output files
 mkp224o
+calcest
+test_*
 *.o
 
 # generated onions
diff --git a/GNUmakefile.in b/GNUmakefile.in
index 71beef6..d566837 100644
--- a/GNUmakefile.in
+++ b/GNUmakefile.in
@@ -57,6 +57,7 @@ TEST_ED25519_OBJ= \
 
 ALL_O= $(sort \
 	$(MAIN_OBJ) \
+	$(UTIL_CALCEST_OBJ) \
 	$(TEST_BASE64_OBJ) \
 	$(TEST_BASE32_OBJ) \
 	$(TEST_BASE16_OBJ) \
diff --git a/calcest.c b/calcest.c
index 28d9c98..0315a3a 100644
--- a/calcest.c
+++ b/calcest.c
@@ -15,19 +15,20 @@
  */
 
 const double probs[] = { 0.5, 0.8, 0.9, 0.95, 0.99 };
-const int charcounts[] = { 2, 3, 4, 5, 6, 7 };
+const int charcounts[] = { 2, 3, 4, 5, 6, 7, 8, 9, 10 };
 
-int main(void)
+int main(int argc,char **argv)
 {
+
 	printf("   |");
 	for (size_t i = 0; i < sizeof(probs)/sizeof(probs[0]); ++i) {
-		printf(" %11d%% |",(int)((probs[i]*100)+0.5));
+		printf(" %15d%% |",(int)((probs[i]*100)+0.5));
 	}
 	printf("\n");
 
 	printf("---+");
 	for (size_t i = 0; i < sizeof(probs)/sizeof(probs[0]); ++i) {
-		printf("--------------+");
+		printf("------------------+");
 	}
 	printf("\n");
 
@@ -35,7 +36,7 @@ int main(void)
 		printf("%2d |",charcounts[i]);
 		for (size_t j = 0; j < sizeof(probs)/sizeof(probs[0]); ++j) {
 			double t = log2(1 - probs[j]) / log2(1 - (1 / pow(32,charcounts[i])));
-			printf(" %12.0f |",t);
+			printf(" %16.0f |",t);
 		}
 		printf("\n");
 	}