diff --git a/bin/git-forgit b/bin/git-forgit
index f3bb035..8e4fbe8 100755
--- a/bin/git-forgit
+++ b/bin/git-forgit
@@ -75,7 +75,6 @@ _forgit_emojify() {
 }
 
 # extract the first git sha occurring in the input and strip trailing newline
-_forgit_extract_sha="grep -Eo '[a-f0-9]+' | head -1 | tr -d '[:space:]'"
 _forgit_extract_sha() {
     grep -Eo '[a-f0-9]+' | head -1 | tr -d '[:space:]'
 }
@@ -556,7 +555,7 @@ _forgit_rebase() {
         git log "${graph[@]}" --color=always --format="$_forgit_log_format" "$@" |
         _forgit_emojify |
         FZF_DEFAULT_OPTS="$opts" fzf |
-        eval "$_forgit_extract_sha")
+        _forgit_extract_sha)
     if [[ -n "$target_commit" ]]; then
         prev_commit=$(_forgit_previous_commit "$target_commit")
         git rebase -i "${_forgit_rebase_git_opts[@]}" "$prev_commit"
@@ -590,7 +589,7 @@ _forgit_fixup() {
         git log "${graph[@]}" --color=always --format="$_forgit_log_format" "$@" |
         _forgit_emojify |
         FZF_DEFAULT_OPTS="$opts" fzf |
-        eval "$_forgit_extract_sha")
+        _forgit_extract_sha)
     if [[ -n "$target_commit" ]] && git commit "${_forgit_fixup_git_opts[@]}" --fixup "$target_commit"; then
         prev_commit=$(_forgit_previous_commit "$target_commit")
         # rebase will fail if there are unstaged changes so --autostash is needed to temporarily stash them
@@ -719,7 +718,7 @@ _forgit_checkout_commit() {
     [[ $_forgit_log_graph_enable == true ]] && graph=(--graph)
     commit="$(git log "${graph[@]}" --color=always --format="$_forgit_log_format" |
         _forgit_emojify |
-        FZF_DEFAULT_OPTS="$opts" fzf | eval "$_forgit_extract_sha")"
+        FZF_DEFAULT_OPTS="$opts" fzf | _forgit_extract_sha)"
     _forgit_git_checkout_commit "$commit"
 }