diff --git a/evil-collection-calc.el b/evil-collection-calc.el
index 25479be..3063aa0 100644
--- a/evil-collection-calc.el
+++ b/evil-collection-calc.el
@@ -29,6 +29,8 @@
 (require 'evil)
 (require 'calc)
 
+(declare-function evil-collection-inhibit-insert-state "evil-collection")
+
 (defun evil-collection-calc-ext-setup ()
   "Set up `evil' bindings for `calc'.
 Since calc bindings are set on-demand when calc-ext is load, we
diff --git a/evil-collection-elfeed.el b/evil-collection-elfeed.el
index 1b2835a..fc81f26 100644
--- a/evil-collection-elfeed.el
+++ b/evil-collection-elfeed.el
@@ -30,6 +30,10 @@
 (require 'elfeed nil t)
 (require 'evil)
 
+(defvar elfeed-search-mode-map)
+(defvar elfeed-show-mode-map)
+(declare-function evil-collection-inhibit-insert-state "evil-collection")
+
 (defun evil-collection-elfeed-setup ()
   "Set up `evil' bindings for `elfeed'."
 
diff --git a/evil-collection-emms.el b/evil-collection-emms.el
index adba25b..b418b14 100644
--- a/evil-collection-emms.el
+++ b/evil-collection-emms.el
@@ -32,6 +32,7 @@
 
 (declare-function emms-with-inhibit-read-only-t "emms")
 (declare-function emms-playlist-mode-correct-previous-yank "emms-playlist-mode")
+(declare-function evil-collection-inhibit-insert-state "evil-collection")
 
 (defvar emms-browser-mode-map)
 (defvar emms-playlist-mode-map)
diff --git a/evil-collection-eww.el b/evil-collection-eww.el
index 3cc357d..6f57854 100644
--- a/evil-collection-eww.el
+++ b/evil-collection-eww.el
@@ -30,6 +30,8 @@
 (require 'eww)
 (require 'evil)
 
+(declare-function evil-collection-inhibit-insert-state "evil-collection")
+
 (defun evil-collection-eww-setup ()
   "Set up `evil' bindings for `eww'."
 
diff --git a/evil-collection-helm.el b/evil-collection-helm.el
index 5f0f286..e24390c 100644
--- a/evil-collection-helm.el
+++ b/evil-collection-helm.el
@@ -41,6 +41,13 @@
 (defvar helm-map)
 (defvar helm-find-files-map)
 (defvar helm-read-file-map)
+(defvar helm-echo-input-in-header-line)
+(defvar helm--prompt)
+(defvar helm--action-prompt)
+(defvar helm-header-line-space-before-prompt)
+
+(declare-function helm-window "helm-lib")
+(declare-function with-helm-buffer "helm-lib")
 
 ;; From https://github.com/emacs-helm/helm/issues/362.
 ;; Also see https://emacs.stackexchange.com/questions/17058/change-cursor-type-in-helm-header-line#17097.
diff --git a/evil-collection-info.el b/evil-collection-info.el
index 14eec23..6ba5198 100644
--- a/evil-collection-info.el
+++ b/evil-collection-info.el
@@ -32,6 +32,8 @@
 (require 'evil-collection-evil-search)
 (require 'info)
 
+(declare-function evil-collection-inhibit-insert-state "evil-collection")
+
 (defun evil-collection-info-setup ()
   "Set up `evil' bindings for `info-mode'."
   (evil-collection-inhibit-insert-state Info-mode-map)
diff --git a/evil-collection-pdf.el b/evil-collection-pdf.el
index 03a3a0e..bb8e1cb 100644
--- a/evil-collection-pdf.el
+++ b/evil-collection-pdf.el
@@ -35,6 +35,12 @@
 (declare-function pdf-view-first-page "pdf-view")
 (declare-function pdf-view-goto-page "pdf-view")
 
+(declare-function evil-collection-inhibit-insert-state "evil-collection")
+
+(defvar pdf-view-mode-map)
+(defvar pdf-outline-buffer-mode-map)
+(defvar pdf-occur-buffer-mode-map)
+
 (defun evil-collection-pdf-view-goto-page (&optional page)
   "`evil' wrapper around `pdf-view-last-page'."
   (interactive "P")
diff --git a/evil-collection-proced.el b/evil-collection-proced.el
index f5d7bd6..eca59a9 100644
--- a/evil-collection-proced.el
+++ b/evil-collection-proced.el
@@ -30,6 +30,8 @@
 (require 'evil)
 (require 'proced)
 
+(declare-function evil-collection-inhibit-insert-state "evil-collection")
+
 (defun evil-collection-proced-setup ()
   "Set up `evil' bindings for `proced'."
   (evil-collection-inhibit-insert-state proced-mode-map)
diff --git a/evil-collection-transmission.el b/evil-collection-transmission.el
index 32309a3..55d64bb 100644
--- a/evil-collection-transmission.el
+++ b/evil-collection-transmission.el
@@ -31,6 +31,12 @@
 (require 'evil)
 (require 'transmission nil t)
 
+(declare-function evil-collection-inhibit-insert-state "evil-collection")
+(defvar transmission-mode-map)
+(defvar transmission-files-mode-map)
+(defvar transmission-info-mode-map)
+(defvar transmission-peers-mode-map)
+
 (defun evil-collection-transmission-setup ()
   "Set up `evil' bindings for `transmission'."
 
diff --git a/evil-collection-ztree.el b/evil-collection-ztree.el
index 8d93f63..304b430 100644
--- a/evil-collection-ztree.el
+++ b/evil-collection-ztree.el
@@ -29,6 +29,11 @@
 (require 'evil)
 (require 'ztree nil t)
 
+(declare-function evil-collection-inhibit-insert-state "evil-collection")
+
+(defvar ztree-mode-map)
+(defvar ztreediff-mode-map)
+
 (defun evil-collection-ztree-setup ()
   "Set up `evil' bindings for `ztree'."