diff --git a/common/app/common/geom/matrix.cljc b/common/app/common/geom/matrix.cljc
index 737acc78c..e071e32f3 100644
--- a/common/app/common/geom/matrix.cljc
+++ b/common/app/common/geom/matrix.cljc
@@ -9,6 +9,8 @@
 
 (ns app.common.geom.matrix
   (:require
+   #?(:cljs [cljs.pprint :as pp]
+      :clj  [clojure.pprint :as pp])
    [app.common.math :as mth]
    [app.common.geom.point :as gpt]))
 
@@ -130,3 +132,5 @@
          (th-eq m1d m2d)
          (th-eq m1e m2e)
          (th-eq m1f m2f))))
+
+(defmethod pp/simple-dispatch Matrix [obj] (pr obj))
diff --git a/common/app/common/geom/point.cljc b/common/app/common/geom/point.cljc
index 7fd2fe621..01122e613 100644
--- a/common/app/common/geom/point.cljc
+++ b/common/app/common/geom/point.cljc
@@ -10,6 +10,8 @@
 (ns app.common.geom.point
   (:refer-clojure :exclude [divide min max])
   (:require
+   #?(:cljs [cljs.pprint :as pp]
+      :clj  [clojure.pprint :as pp])
    #?(:cljs [cljs.core :as c]
       :clj [clojure.core :as c])
    [app.common.math :as mth]))
@@ -245,3 +247,8 @@
                 (- (* y2 x1))))
         dist (distance line-point2 line-point1)]
     (/ num dist)))
+
+
+;; --- Debug
+
+(defmethod pp/simple-dispatch Point [obj] (pr obj))