diff --git a/gimme b/gimme
index 46418db..a1c0e10 100755
--- a/gimme
+++ b/gimme
@@ -757,7 +757,7 @@ _to_goarch() {
 : "${GIMME_HOSTARCH:=$(_to_goarch "$(uname -m)")}"
 : "${GIMME_ENV_PREFIX:=${HOME}/.gimme/envs}"
 : "${GIMME_VERSION_PREFIX:=${HOME}/.gimme/versions}"
-: "${GIMME_TMP:=${TMPDIR:-/tmp}/gimme}"
+: "${GIMME_TMP:=${TMPDIR:-/tmp/$(whoami)}/gimme}"
 : "${GIMME_GO_GIT_REMOTE:=https://github.com/golang/go.git}"
 : "${GIMME_TYPE:=auto}" # 'auto', 'binary', 'source', or 'git'
 : "${GIMME_BINARY_OSX:=osx10.8}"