diff --git a/libexec/pyenv b/libexec/pyenv
index 3cf004e6..9dd464a9 100755
--- a/libexec/pyenv
+++ b/libexec/pyenv
@@ -28,8 +28,6 @@ if [ -z "$READLINK" ]; then
   exit 1
 fi
 
-unset GREP_OPTIONS
-
 resolve_link() {
   $READLINK "$1"
 }
diff --git a/test/libexec/pyenv-grep b/test/libexec/pyenv-grep
deleted file mode 100755
index 862c66fc..00000000
--- a/test/libexec/pyenv-grep
+++ /dev/null
@@ -1,2 +0,0 @@
-#!/usr/bin/env bash
-grep -E "$@"
diff --git a/test/pyenv_ext.bats b/test/pyenv_ext.bats
index 95baa41e..fdc7da46 100644
--- a/test/pyenv_ext.bats
+++ b/test/pyenv_ext.bats
@@ -1,11 +1,3 @@
 #!/usr/bin/env bats
 
 load test_helper
-
-@test "conflicting GREP_OPTIONS" {
-  file="${BATS_TMPDIR}/hello"
-  echo "hello" > "$file"
-  GREP_OPTIONS="-F" run pyenv grep "hell." "$file"
-  assert_success
-  assert_output "hello"
-}