diff --git a/src/sdf/ftsdf.c b/src/sdf/ftsdf.c
index 26a6d00e4..d8479af10 100644
--- a/src/sdf/ftsdf.c
+++ b/src/sdf/ftsdf.c
@@ -2375,7 +2375,7 @@
      *     90~degrees with the curve.  We solve this with the Newton-Raphson
      *     method.
      *
-     * (7) We first assume an arbitary value of factor `t`, which we then
+     * (7) We first assume an arbitrary value of factor `t`, which we then
      *     improve.
      *
      *     ```
@@ -2688,7 +2688,7 @@
      *     90~degree with curve.  We solve this with the Newton-Raphson
      *     method.
      *
-     * (7) We first assume an arbitary value of factor `t`, which we then
+     * (7) We first assume an arbitrary value of factor `t`, which we then
      *     improve.
      *
      *     ```
@@ -2718,8 +2718,9 @@
 
     FT_Error  error = FT_Err_Ok;
 
-    FT_26D6_Vec   aA, bB, cC, dD; /* A, B, C in the above comment          */
-    FT_16D16_Vec  nearest_point;  /* point on curve nearest to `point`     */
+    FT_26D6_Vec   aA, bB, cC, dD; /* A, B, C, D in the above comment       */
+    FT_16D16_Vec  nearest_point = { 0, 0 };
+                                  /* point on curve nearest to `point`     */
     FT_16D16_Vec  direction;      /* direction of curve at `nearest_point` */
 
     FT_26D6_Vec  p0, p1, p2, p3;  /* control points of a cubic curve       */