diff --git a/platforms.json b/platforms.json
index 89d15d5..4269f65 100644
--- a/platforms.json
+++ b/platforms.json
@@ -353,9 +353,11 @@
 	
     "Windows x32": {
       "docker": {
-        "directory": "windows32",
+        "directory": "windows",
         "image_basename": "windows32",
-        "build_options": {}
+        "build_options": {
+		  "DOCKER_BITS": "32"
+		}
       },
       "cmake_toolchain": "/soft/toolchain-Windows32.cmake"
     },
@@ -364,7 +366,9 @@
       "docker": {
         "directory": "osx",
         "image_basename": "osx",
-        "build_options": {}
+        "build_options": {
+		  "DOCKER_BITS": "64"
+		}
       },
       "cmake_toolchain": "/soft/toolchain-Darwin.cmake"
     },