diff --git a/install.sh b/install.sh
index 3ae0bd31..0b69d205 100755
--- a/install.sh
+++ b/install.sh
@@ -157,7 +157,7 @@ install_nvm_from_git() {
   NVM_VERSION="${NVM_INSTALL_VERSION:-$(nvm_latest_version)}"
   if [ -n "${NVM_INSTALL_VERSION:-}" ]; then
     # Check if version is an existing ref
-    if command git ls-remote "$(nvm_source "git")" "$NVM_VERSION" | nvm_grep -q "$NVM_VERSION" ; then
+    if command git ls-remote "$(nvm_source "git")" "$NVM_VERSION" | nvm_grep -q -e "$NVM_VERSION" ; then
       :
     # Check if version is an existing changeset
     elif ! nvm_download -o /dev/null "$(nvm_source "script-nvm-exec")"; then
diff --git a/nvm.sh b/nvm.sh
index 6b547fb6..db84d5ac 100755
--- a/nvm.sh
+++ b/nvm.sh
@@ -4741,7 +4741,7 @@ nvm() {
       nvm_echo "${NVM_SUCCESS_MSG}"
 
       # rm any aliases that point to uninstalled version.
-      for ALIAS in $(nvm_grep -l "${VERSION}" "$(nvm_alias_path)"/* 2>/dev/null); do
+      for ALIAS in $(nvm_grep -l -e "${VERSION}" "$(nvm_alias_path)"/* 2>/dev/null); do
         nvm unalias "$(command basename "${ALIAS}")"
       done
     ;;