diff --git a/magick/wand/lib.lua b/magick/wand/lib.lua
index 7dab75a..cce5b9e 100644
--- a/magick/wand/lib.lua
+++ b/magick/wand/lib.lua
@@ -116,9 +116,9 @@ get_flags = function()
   proc:close()
   return flags
 end
+local im_7
 local get_filters
 get_filters = function()
-  local fname = "magick/resample.h"
   local prefixes = {
     "/usr/include/ImageMagick",
     "/usr/local/include/ImageMagick",
@@ -134,6 +134,17 @@ get_filters = function()
   }
   for _index_0 = 1, #prefixes do
     local p = prefixes[_index_0]
+    -- adapter im 6.9+ source install
+    local fname = "magick/resample.h"
+    do
+      local v = string.match(p, "%d+%.?%d*")
+      if v then
+        if tonumber(v) >= 6.9 then
+          fname = "MagickCore/resample.h"
+          im_7 = true
+        end
+      end
+    end
     local full = tostring(p) .. "/" .. tostring(fname)
     do
       local f = io.open(full)
@@ -144,7 +155,13 @@ get_filters = function()
           f:close()
           content = _with_0
         end
-        local filter_types = content:match("(typedef enum.-FilterTypes;)")
+        -- adapter im 6.9+ source install
+        local filter_types
+        if not (im_7) then
+          filter_types = content:match("(typedef enum.-FilterTypes;)")
+        else
+          filter_types = content:match("(typedef enum.-FilterType;)")
+        end
         if filter_types then
           ffi.cdef(filter_types)
           return true
@@ -160,10 +177,18 @@ get_filter = function(name)
 end
 local can_resize
 if get_filters() then
-  ffi.cdef([[    MagickBooleanType MagickResizeImage(MagickWand*,
-      const size_t, const size_t,
-      const FilterTypes, const double);
-  ]])
+  -- adapter im 6.9+ source install
+  if not (im_7) then
+    ffi.cdef([[      MagickBooleanType MagickResizeImage(MagickWand*,
+        const size_t, const size_t,
+        const FilterTypes, const double);
+    ]])
+  else
+    ffi.cdef([[      MagickBooleanType MagickResizeImage(MagickWand*,
+        const size_t, const size_t,
+        const FilterType, const double);
+    ]])
+  end
   can_resize = true
 end
 local try_to_load
diff --git a/magick/wand/lib.moon b/magick/wand/lib.moon
index 62ba6d0..027cf9c 100644
--- a/magick/wand/lib.moon
+++ b/magick/wand/lib.moon
@@ -111,7 +111,6 @@ ffi.cdef [[
   MagickBooleanType MagickAutoOrientImage(MagickWand *wand);
 ]]
 
-
 get_flags = ->
   proc = io.popen "pkg-config --cflags --libs MagickWand", "r"
   flags = proc\read "*a"
@@ -119,8 +118,8 @@ get_flags = ->
   proc\close!
   flags
 
+local im_7
 get_filters = ->
-  fname = "magick/resample.h"
   prefixes = {
     "/usr/include/ImageMagick"
     "/usr/local/include/ImageMagick"
@@ -128,10 +127,21 @@ get_filters = ->
   }
 
   for p in *prefixes
+    -- adapter im 6.9+ source install
+    fname = "magick/resample.h"
+    if v = string.match(p, "%d+%.?%d*") 
+      if tonumber(v) >= 6.9
+        fname = "MagickCore/resample.h"
+        im_7 = true
     full = "#{p}/#{fname}"
     if f = io.open full
       content = with f\read "*a" do f\close!
-      filter_types = content\match "(typedef enum.-FilterTypes;)"
+      -- adapter im 6.9+ source install
+      local filter_types
+      unless im_7
+        filter_types = content\match "(typedef enum.-FilterTypes;)"
+      else
+        filter_types = content\match "(typedef enum.-FilterType;)"
       if filter_types
         ffi.cdef filter_types
         return true
@@ -142,11 +152,19 @@ get_filter = (name) ->
   lib[name .. "Filter"]
 
 can_resize = if get_filters!
-  ffi.cdef [[
-    MagickBooleanType MagickResizeImage(MagickWand*,
-      const size_t, const size_t,
-      const FilterTypes, const double);
-  ]]
+  -- adapter im 6.9+ source install
+  unless im_7
+    ffi.cdef [[
+      MagickBooleanType MagickResizeImage(MagickWand*,
+        const size_t, const size_t,
+        const FilterTypes, const double);
+    ]]
+  else 
+   ffi.cdef [[
+      MagickBooleanType MagickResizeImage(MagickWand*,
+        const size_t, const size_t,
+        const FilterType, const double);
+    ]]
   true
 
 try_to_load = (...) ->