diff --git a/Formula/sleuthkit.rb b/Formula/sleuthkit.rb
index 30dd5c0c98..1baaa2ffe2 100644
--- a/Formula/sleuthkit.rb
+++ b/Formula/sleuthkit.rb
@@ -14,6 +14,12 @@ class Sleuthkit < Formula
     depends_on "libtool" => :build
   end
 
+  def patches
+    # required for new-ish libewf releases (API change)
+    # fixed in the upcoming sleuthkit 4.x
+    "http://downloads.sourceforge.net/project/libewf/patches%20for%203rd%20party%20software/sleuthkit/tsk3.2.3-libewf.patch" if !ARGV.build_head?
+  end
+
   def install
     if ARGV.build_head?
       system "glibtoolize"