diff --git a/NEWS.md b/NEWS.md
index 7b4d24d2..aed903cb 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,7 @@
+# Version 1.6.8
+
+- Fixed usage of `FAKE_EC_HOMEDIR` variable in fake library.
+
 # Version 1.6.7
 
 - Completed API methods in fake library
diff --git a/configure.ac b/configure.ac
index 8f319b92..b7d63911 100644
--- a/configure.ac
+++ b/configure.ac
@@ -28,7 +28,7 @@ AC_PREREQ([2.59])
 # - Check for complete Doxygen comments
 # - Update version number below
 #
-AC_INIT([ethercat], [1.6.7], [fp@igh.de])
+AC_INIT([ethercat], [1.6.8], [fp@igh.de])
 AC_CONFIG_AUX_DIR([autoconf])
 AM_INIT_AUTOMAKE([-Wall -Wno-override -Werror dist-bzip2 subdir-objects foreign])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
diff --git a/fake_lib/README.md b/fake_lib/README.md
index 3ceb1a91..220e833e 100644
--- a/fake_lib/README.md
+++ b/fake_lib/README.md
@@ -9,14 +9,16 @@ data level by running two applications back to back.
 
 ## Supported features
 
-Currently, only a very limited subset of libethercat functionality is
-supported:
+Although the library implements the complete API (to avoid undefined
+references), most function calls will just do nothing and return no error.
+However, some methods have a bit of logic implemented to simulate a working
+master. This is what is possible:
 
  - Creating master and domain instances
- - Activating master, `send`/`receive`.
+ - Activating master, `send()` and `receive()`.
  - Processing and queuing domains
  - Configuring PDOs
- - Configuring SDOs using `ecrt_slave_config_sdo*`
+ - Configuring SDOs using `ecrt_slave_config_sdo*()`
 
 The SDO config does not do anything, but when activating the master the SDO
 config will be dumped into a JSON file.
diff --git a/fake_lib/fakeethercat.cpp b/fake_lib/fakeethercat.cpp
index b1bd8b13..93df7a36 100644
--- a/fake_lib/fakeethercat.cpp
+++ b/fake_lib/fakeethercat.cpp
@@ -573,11 +573,11 @@ static int mkpath(const std::string &file_path)
 
 static std::string getRtIpcDir(int idx)
 {
-    std::string ans;
+    std::string ans("/tmp/FakeEtherCAT");
     if (const auto e = getenv("FAKE_EC_HOMEDIR")) {
-        ans = e + std::string("/") + std::to_string(idx);
+        ans = e;
     }
-    ans = "/tmp/FakeEtherCAT/" + std::to_string(idx);
+    ans += std::string("/") + std::to_string(idx);
     mkpath(ans);
     return ans;
 }