diff --git a/src/doplarr/backends/overseerr.clj b/src/doplarr/backends/overseerr.clj
index 7219e70..25cb696 100644
--- a/src/doplarr/backends/overseerr.clj
+++ b/src/doplarr/backends/overseerr.clj
@@ -10,7 +10,7 @@
     (utils/request-and-process-body
      impl/GET
      (partial impl/process-search-result type)
-     (str "/search?query=" term))))
+     (str "/search?query=" (utils/url-encode-illegal-characters term)))))
 
 ; In Overseerr, the only additional option we'll need is which season,
 ; if the request type is a series
diff --git a/src/doplarr/utils.clj b/src/doplarr/utils.clj
index 7d4a1e8..6c2a2b3 100644
--- a/src/doplarr/utils.clj
+++ b/src/doplarr/utils.clj
@@ -8,6 +8,7 @@
    [doplarr.state :as state]
    [fmnoise.flow :as flow :refer [else then]]
    [hato.client :as hc]
+   [hato.middleware :as hm]
    [taoensso.timbre :refer [fatal trace]]
    [clojure.set :as set]))
 
@@ -84,6 +85,15 @@
           (str/trim (subs % 0 (- (count %) 2)))
           (str/trim %)))))
 
+(defn url-encode-illegal-characters
+  "Takes a raw url path or query and url-encodes any illegal characters.
+  Minimizes ambiguity by encoding space to %20."
+  [path-or-query]
+  (when path-or-query
+    (-> path-or-query
+        (str/replace #"[^a-zA-Z0-9]" hm/url-encode)
+        (str/replace "+" "%20"))))
+
 (defn media-fn
   "Resolves a function `f` in the backend namespace matching the available backend for a given `media`"
   [media f]