diff --git a/test/install/install.bats b/test/install/install.bats
index 7e971d1f..68515109 100644
--- a/test/install/install.bats
+++ b/test/install/install.bats
@@ -3,15 +3,8 @@
 load ../test_helper
 load ../../lib/composure
 
-# Determine which config file to use based on OS.
-case $OSTYPE in
-  darwin*)
-    export BASH_IT_CONFIG_FILE=.bash_profile
-    ;;
-  *)
-    export BASH_IT_CONFIG_FILE=.bashrc
-    ;;
-esac
+# Define our target config file
+export BASH_IT_CONFIG_FILE=.bashrc
 
 function local_setup {
   mkdir -p "$BASH_IT"