diff --git a/coords.scad b/coords.scad
index 159c3af..83c9745 100644
--- a/coords.scad
+++ b/coords.scad
@@ -105,7 +105,7 @@ function point4d(p, fill=0) = assert(is_list(p))
 //   pt = path4d(points, [fill]);
 // Topics: Coordinates, Points, Paths
 // See Also: point2d(), path2d(), point3d(), path3d(), point4d()
-// Convert a path to 4d.  
+// Synopsis: Convert a path to 4d.  
 // Description:
 //   Returns a list of 4D vectors/points from a list of 2D or 3D vectors/points.
 // Arguments:
diff --git a/linalg.scad b/linalg.scad
index 35c9822..c69ca9a 100644
--- a/linalg.scad
+++ b/linalg.scad
@@ -427,7 +427,7 @@ function hstack(M1, M2, M3) =
 //    bmat = block_matrix([[M11, M12,...],[M21, M22,...], ... ]);
 // Topics: Matrices, Arrays
 // See Also: column(), submatrix()
-// Make a new matrix from a block of matrices. 
+// Synopsis: Make a new matrix from a block of matrices. 
 // Description:
 //    Create a block matrix by supplying a matrix of matrices, which will
 //    be combined into one unified matrix.  Every matrix in one row