diff --git a/cameo/gerber.c b/cameo/gerber.c
index 9aca5f5..5d26a5b 100644
--- a/cameo/gerber.c
+++ b/cameo/gerber.c
@@ -37,8 +37,9 @@ struct path *gerber_read(const char *name, double r_tool_default)
 	int lineno = 0;
 	char buf[1024];
 	struct path *paths = NULL, **anchor = &paths, *path = NULL;
-	int start_x = 0, start_y = 0;
-	int x, y, d;
+	double start_x = 0, start_y = 0;
+	int xi, yi, d;
+	double x, y;
 
 	file = name ? fopen(name, "r") : stdin;
 	if (!file) {
@@ -64,10 +65,10 @@ struct path *gerber_read(const char *name, double r_tool_default)
 			}
 			continue;
 		}
-		if (sscanf(buf, "X%dY%dD%d*\n", &x, &y, &d) != 3)
+		if (sscanf(buf, "X%dY%dD%d*\n", &xi, &yi, &d) != 3)
 			continue;
-		x = KU2MM(x);
-		y = KU2MM(y);
+		x = KU2MM(xi);
+		y = KU2MM(yi);
 		switch (d) {
 		case 1:
 			if (!path) {