diff --git a/.emacs.d/lisp/init-eshell.el b/.emacs.d/lisp/init-eshell.el
index 90310cad..cafacab7 100644
--- a/.emacs.d/lisp/init-eshell.el
+++ b/.emacs.d/lisp/init-eshell.el
@@ -203,6 +203,14 @@
 ;;   (setq epa-file-encrypt-to "mail@ambrevar.xyz"))
 ;; (add-hook 'eshell-mode-hook 'ambrevar/fix-local-epa-file-encrypt-to)
 
+(when (require 'helm nil :noerror)
+  (defun ambrevar/helm/eshell-set-keys ()
+    (define-key eshell-mode-map [remap eshell-pcomplete] 'helm-esh-pcomplete)
+    (define-key eshell-mode-map (kbd "M-p") 'helm-eshell-history)
+    (define-key eshell-mode-map (kbd "M-s") nil) ; Useless when we have 'helm-eshell-history.
+    (define-key eshell-mode-map (kbd "M-s f") 'helm-eshell-prompts-all))
+  (add-hook 'eshell-mode-hook 'ambrevar/helm/eshell-set-keys))
+
 ;;; Auto-suggestion
 (when (require 'esh-autosuggest nil t)
   (setq esh-autosuggest-delay 0.75)
diff --git a/.emacs.d/lisp/init-helm.el b/.emacs.d/lisp/init-helm.el
index 013f0755..138b3966 100644
--- a/.emacs.d/lisp/init-helm.el
+++ b/.emacs.d/lisp/init-helm.el
@@ -140,50 +140,12 @@
                                   helm-source-bookmark-set
                                   helm-source-buffer-not-found))
 
-;;; Eshell
-(defun ambrevar/helm/eshell-set-keys ()
-  (define-key eshell-mode-map [remap eshell-pcomplete] 'helm-esh-pcomplete)
-  (define-key eshell-mode-map (kbd "M-p") 'helm-eshell-history)
-  (define-key eshell-mode-map (kbd "M-s") nil) ; Useless when we have 'helm-eshell-history.
-  (define-key eshell-mode-map (kbd "M-s f") 'helm-eshell-prompts-all))
-(add-hook 'eshell-mode-hook 'ambrevar/helm/eshell-set-keys)
-
 ;;; Comint
 (defun ambrevar/helm/comint-set-keys ()
   (define-key comint-mode-map (kbd "M-s f") 'helm-comint-prompts-all)
   (define-key comint-mode-map (kbd "M-p") 'helm-comint-input-ring))
 (add-hook 'comint-mode-hook 'ambrevar/helm/comint-set-keys)
 
-;;; Geiser
-(with-eval-after-load 'geiser-repl
-  (defun ambrevar/helm/geiser-set-keys ()
-    (define-key geiser-repl-mode-map (kbd "M-p") 'helm-comint-input-ring))
-  (add-hook 'geiser-repl-mode-hook 'ambrevar/helm/geiser-set-keys))
-
-;;; SLY
-(with-eval-after-load 'sly
-  (with-eval-after-load 'sly-mrepl
-    (define-key sly-mrepl-mode-map (kbd "M-p") 'helm-comint-input-ring)
-    (define-key sly-mrepl-mode-map (kbd "M-s f") 'helm-comint-prompts-all)
-    (define-key sly-autodoc-mode-map (kbd "C-c C-d C-a") 'helm-sly-apropos)
-    (define-key sly-mrepl-mode-map (kbd "C-c C-x c") 'helm-sly-list-connections)))
-
-;;; SLIME
-(with-eval-after-load 'slime
-  (when (require 'helm-slime nil t)
-    (with-eval-after-load 'slime-repl
-      (defun ambrevar/helm/slime-set-keys ()
-        (define-key slime-repl-mode-map (kbd "M-p") 'helm-slime-repl-history)
-        (define-key slime-repl-mode-map (kbd "M-s") nil)
-        (define-key slime-repl-mode-map (kbd "M-s f") 'helm-comint-prompts-all)
-        (define-key slime-autodoc-mode-map (kbd "C-c C-d C-a") 'helm-slime-apropos)
-        (define-key slime-repl-mode-map (kbd "C-c C-x c") 'helm-slime-list-connections)
-        ;; REVIEW: Seems that helm-company is less useful than helm-slime-complete.
-        (define-key slime-mode-map (kbd "M-<tab>") 'helm-slime-complete)
-        (dolist (key '("M-<tab>" "<tab>"))
-          (define-key slime-repl-mode-map (kbd key) 'helm-slime-complete)))
-      (add-hook 'slime-repl-mode-hook 'ambrevar/helm/slime-set-keys))))
-
 ;;; TODO: Use helm-ff history in helm file completion.
 ;;; https://github.com/emacs-helm/helm/issues/1118
 ;; (define-key helm-read-file-map (kbd "M-p") 'helm-ff-run-switch-to-history)
diff --git a/.emacs.d/lisp/init-scheme.el b/.emacs.d/lisp/init-scheme.el
index 1e127d1c..10fe6d0d 100644
--- a/.emacs.d/lisp/init-scheme.el
+++ b/.emacs.d/lisp/init-scheme.el
@@ -21,6 +21,12 @@
                 :override 'al/scheme-indent-function)
     (add-hook 'scheme-mode-hook 'al/scheme-fix-docstring-font-lock)))
 
+(with-eval-after-load 'geiser-repl
+  (when (require 'helm nil :noerror)
+    (defun ambrevar/helm/geiser-set-keys ()
+      (define-key geiser-repl-mode-map (kbd "M-p") 'helm-comint-input-ring))
+    (add-hook 'geiser-repl-mode-hook 'ambrevar/helm/geiser-set-keys)))
+
 (when (require 'geiser-impl nil 'noerror)
   ;; (setq geiser-repl-skip-version-check-p t
   ;;       geiser-mode-start-repl-p t)
diff --git a/.emacs.d/lisp/init-slime.el b/.emacs.d/lisp/init-slime.el
index a19d7523..611191da 100644
--- a/.emacs.d/lisp/init-slime.el
+++ b/.emacs.d/lisp/init-slime.el
@@ -37,7 +37,19 @@
   (add-hook 'slime-repl-mode-hook #'ambrevar/slime-rainbow-init))
 
 (when (require 'helm-slime nil :noerror)
-    (global-helm-slime-mode)
-    (add-to-list 'helm-source-names-using-follow "SLIME xrefs"))
+  (with-eval-after-load 'slime-repl
+    (defun ambrevar/helm/slime-set-keys ()
+      (define-key slime-repl-mode-map (kbd "M-p") 'helm-slime-repl-history)
+      (define-key slime-repl-mode-map (kbd "M-s") nil)
+      (define-key slime-repl-mode-map (kbd "M-s f") 'helm-comint-prompts-all)
+      (define-key slime-autodoc-mode-map (kbd "C-c C-d C-a") 'helm-slime-apropos)
+      (define-key slime-repl-mode-map (kbd "C-c C-x c") 'helm-slime-list-connections)
+      ;; REVIEW: Seems that helm-company is less useful than helm-slime-complete.
+      (define-key slime-mode-map (kbd "M-<tab>") 'helm-slime-complete)
+      (dolist (key '("M-<tab>" "<tab>"))
+        (define-key slime-repl-mode-map (kbd key) 'helm-slime-complete)))
+    (add-hook 'slime-repl-mode-hook 'ambrevar/helm/slime-set-keys))
+  (global-helm-slime-mode)
+  (add-to-list 'helm-source-names-using-follow "SLIME xrefs"))
 
 (provide 'init-slime)
diff --git a/.emacs.d/lisp/init-sly.el b/.emacs.d/lisp/init-sly.el
index bec950ff..3bde85e2 100644
--- a/.emacs.d/lisp/init-sly.el
+++ b/.emacs.d/lisp/init-sly.el
@@ -47,10 +47,16 @@
 
 (setq sly-connection-update-interval 0.1)
 
-(with-eval-after-load 'sly
-  (when (require 'helm-sly nil :noerror)
-    (global-helm-sly-mode)
-    (add-to-list 'helm-source-names-using-follow "Lisp xrefs")))
+(when (require 'helm nil :noerror)
+  (with-eval-after-load 'sly-mrepl
+    (define-key sly-mrepl-mode-map (kbd "M-p") 'helm-comint-input-ring)
+    (define-key sly-mrepl-mode-map (kbd "M-s f") 'helm-comint-prompts-all)
+    (define-key sly-autodoc-mode-map (kbd "C-c C-d C-a") 'helm-sly-apropos)
+    (define-key sly-mrepl-mode-map (kbd "C-c C-x c") 'helm-sly-list-connections)))
+
+(when (require 'helm-sly nil :noerror)
+  (global-helm-sly-mode)
+  (add-to-list 'helm-source-names-using-follow "Lisp xrefs"))
 
 (with-eval-after-load 'sly-mrepl
   (set-face-attribute 'sly-mrepl-output-face nil :inherit 'default :foreground)