diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PythonClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PythonClientCodegen.java
index c4aa4993aea..807199f9c6e 100755
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PythonClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PythonClientCodegen.java
@@ -79,6 +79,7 @@ public PythonClientCodegen() {
         languageSpecificPrimitives.add("datetime");
         languageSpecificPrimitives.add("date");
         languageSpecificPrimitives.add("object");
+        languageSpecificPrimitives.add("binary_type");
 
         typeMapping.clear();
         typeMapping.put("integer", "int");
@@ -96,8 +97,8 @@ public PythonClientCodegen() {
         typeMapping.put("file", "file");
         // TODO binary should be mapped to byte array
         // mapped to String as a workaround
-        typeMapping.put("binary", "str");
-        typeMapping.put("ByteArray", "str");
+        typeMapping.put("binary", "binary_type");
+        typeMapping.put("ByteArray", "binary_type");
         // map uuid to string for the time being
         typeMapping.put("UUID", "str");