diff --git a/files/package_pool.go b/files/package_pool.go
index 385ed050..a03ebdc0 100644
--- a/files/package_pool.go
+++ b/files/package_pool.go
@@ -128,12 +128,15 @@ func (pool *PackagePool) Import(path string, hashMD5 string) error {
 			// unable to stat target location?
 			return err
 		}
-		// file doesn't exist, that's ok
 	} else {
+		// target already exists
 		if targetInfo.Size() != sourceInfo.Size() {
 			// trying to overwrite file?
 			return fmt.Errorf("unable to import into pool: file %s already exists", poolPath)
 		}
+
+		// assume that target is already there
+		return nil
 	}
 
 	// create subdirs as necessary
diff --git a/system/lib.py b/system/lib.py
index 2e328bdd..7782729e 100644
--- a/system/lib.py
+++ b/system/lib.py
@@ -156,6 +156,7 @@ class BaseTest(object):
                 'files': os.path.join(os.path.dirname(inspect.getsourcefile(BaseTest)), "files"),
                 'udebs': os.path.join(os.path.dirname(inspect.getsourcefile(BaseTest)), "udebs"),
                 'testfiles': os.path.join(os.path.dirname(inspect.getsourcefile(self.__class__)), self.__class__.__name__),
+                'aptlyroot': os.path.join(os.environ["HOME"], ".aptly"),
             }
             if self.fixtureWebServer:
                 params['url'] = self.webServerUrl
@@ -258,6 +259,10 @@ class BaseTest(object):
         if os.path.exists(os.path.join(os.environ["HOME"], ".aptly", path)):
             raise Exception("path %s exists" % (path, ))
 
+    def check_file_not_empty(self, path):
+        if os.stat(os.path.join(os.environ["HOME"], ".aptly", path))[6] == 0:
+            raise Exception("file %s is empty" % (path, ))
+
     def check_equal(self, a, b):
         if a != b:
             self.verify_match(a, b, match_prepare=pprint.pformat)
diff --git a/system/t09_repo/AddRepo14Test_gold b/system/t09_repo/AddRepo14Test_gold
new file mode 100644
index 00000000..d08ab1e1
--- /dev/null
+++ b/system/t09_repo/AddRepo14Test_gold
@@ -0,0 +1,2 @@
+Loading packages...
+[+] libboost-program-options-dev_1.49.0.1_i386 added
diff --git a/system/t09_repo/add.py b/system/t09_repo/add.py
index 9b5d9319..3c26cea1 100644
--- a/system/t09_repo/add.py
+++ b/system/t09_repo/add.py
@@ -267,3 +267,19 @@ class AddRepo13Test(BaseTest):
         # check pool
         self.check_exists('pool/72/16/dmraid-udeb_1.0.0.rc16-4.1_amd64.udeb')
         self.check_exists('pool/b7/2c/pyspi_0.6.1-1.3.dsc')
+
+
+class AddRepo14Test(BaseTest):
+    """
+    add same package to local repo twice and make sure the file doesn't get truncated.
+    """
+    fixtureCmds = [
+        "aptly repo create -comment=Repo14 -distribution=squeeze repo14",
+        "aptly repo add repo14 ${files}/libboost-program-options-dev_1.49.0.1_i386.deb"
+    ]
+    runCmd = "aptly repo add repo14 $aptlyroot/pool/00/35/libboost-program-options-dev_1.49.0.1_i386.deb"
+
+    def check(self):
+        super(AddRepo14Test, self).check()
+        # check pool
+        self.check_file_not_empty('pool/00/35/libboost-program-options-dev_1.49.0.1_i386.deb')