diff --git a/scrapy/xlib/simplejson/__init__.py b/scrapy/xlib/simplejson/__init__.py
index dcfd5413b..9ae5fa698 100644
--- a/scrapy/xlib/simplejson/__init__.py
+++ b/scrapy/xlib/simplejson/__init__.py
@@ -121,7 +121,7 @@ OrderedDict = _import_OrderedDict()
 
 def _import_c_make_encoder():
     try:
-        from simplejson._speedups import make_encoder
+        from scrapy.xlib.simplejson._speedups import make_encoder
         return make_encoder
     except ImportError:
         return None
diff --git a/scrapy/xlib/simplejson/decoder.py b/scrapy/xlib/simplejson/decoder.py
index 4cf4015f6..a6ce82f57 100644
--- a/scrapy/xlib/simplejson/decoder.py
+++ b/scrapy/xlib/simplejson/decoder.py
@@ -4,10 +4,10 @@ import re
 import sys
 import struct
 
-from simplejson.scanner import make_scanner
+from scrapy.xlib.simplejson.scanner import make_scanner
 def _import_c_scanstring():
     try:
-        from simplejson._speedups import scanstring
+        from scrapy.xlib.simplejson._speedups import scanstring
         return scanstring
     except ImportError:
         return None
diff --git a/scrapy/xlib/simplejson/encoder.py b/scrapy/xlib/simplejson/encoder.py
index cab845653..a3b473a8c 100644
--- a/scrapy/xlib/simplejson/encoder.py
+++ b/scrapy/xlib/simplejson/encoder.py
@@ -5,13 +5,13 @@ from decimal import Decimal
 
 def _import_speedups():
     try:
-        from simplejson import _speedups
+        from scrapy.xlib.simplejson import _speedups
         return _speedups.encode_basestring_ascii, _speedups.make_encoder
     except ImportError:
         return None, None
 c_encode_basestring_ascii, c_make_encoder = _import_speedups()
 
-from simplejson.decoder import PosInf
+from scrapy.xlib.simplejson.decoder import PosInf
 
 ESCAPE = re.compile(r'[\x00-\x1f\\"\b\f\n\r\t]')
 ESCAPE_ASCII = re.compile(r'([\\"]|[^\ -~])')
diff --git a/scrapy/xlib/simplejson/scanner.py b/scrapy/xlib/simplejson/scanner.py
index 54593a371..ac99c2708 100644
--- a/scrapy/xlib/simplejson/scanner.py
+++ b/scrapy/xlib/simplejson/scanner.py
@@ -3,7 +3,7 @@
 import re
 def _import_c_make_scanner():
     try:
-        from simplejson._speedups import make_scanner
+        from scrapy.xlib.simplejson._speedups import make_scanner
         return make_scanner
     except ImportError:
         return None