diff --git a/font.h b/font.h
index 49e0b7a..77a7ae1 100644
--- a/font.h
+++ b/font.h
@@ -269,7 +269,7 @@ static char header_data_cmap[256][3] = {
 	{255,255,255},
 	{255,255,255}
 	};
-static char header_data[] = {
+static char header_data[36000] = {
 	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
diff --git a/optar.c b/optar.c
index b7739ad..c6c9d13 100644
--- a/optar.c
+++ b/optar.c
@@ -16,7 +16,7 @@
 #define HEIGHT (2*BORDER+DATA_HEIGHT+TEXT_HEIGHT)
 #define TEXT_HEIGHT 24
 
-static unsigned char ary[WIDTH*HEIGHT];
+static unsigned char ary[WIDTH * HEIGHT];
 static unsigned char *file_label=(unsigned char *)""; /* The filename written in the
 					file_label */
 static char *output_filename; /* The output filename */
diff --git a/unoptar.c b/unoptar.c
index 5cd6e76..afcead7 100644
--- a/unoptar.c
+++ b/unoptar.c
@@ -316,7 +316,7 @@ static double angle(double x, double y)
 {
 	double deg;
 
-	if (abs(x)>abs(y)){
+	if (fabs(x)>fabs(y)){
 		/* Horizontal */
 		deg=180/M_PI*asin(y);
 		if (x<0) deg=180-deg;