diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 7.0.4 (2020-09-11)
+
+- Escape `+` that can occasionally appear in package names.
+
 ## 7.0.3 (2020-05-27)
 
 - Bumped `http-client` bounds.
diff --git a/aur.cabal b/aur.cabal
--- a/aur.cabal
+++ b/aur.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.2
 name:               aur
-version:            7.0.3
+version:            7.0.4
 synopsis:           Access metadata from the Arch Linux User Repository.
 description:
   Access package information from Arch Linux's AUR via its RPC interface. The
diff --git a/lib/Linux/Arch/Aur.hs b/lib/Linux/Arch/Aur.hs
--- a/lib/Linux/Arch/Aur.hs
+++ b/lib/Linux/Arch/Aur.hs
@@ -123,7 +123,11 @@
 info m ps = work m url
   where
     url = "https://aur.archlinux.org/rpc?v=5&type=info&" <> as
-    as = T.unpack . T.intercalate "&" $ map ("arg%5B%5D=" <>) ps
+    as = T.unpack . T.intercalate "&" $ map (\p -> "arg%5B%5D=" <> T.concatMap escape p) ps
+
+escape :: Char -> Text
+escape '+' = "%2B"
+escape c   = T.singleton c
 
 -- | Perform a @search@ call on a package name or description text.
 -- Will fail with a `Left` if there was a connection/decoding error.
diff --git a/tests/Test.hs b/tests/Test.hs
--- a/tests/Test.hs
+++ b/tests/Test.hs
@@ -18,7 +18,7 @@
   ]
 
 infoTest :: Manager -> Assertion
-infoTest m = info m ["aura", "aura-bin"] >>= \x -> (length <$> x) @?= Right 2
+infoTest m = info m ["aura", "aura-bin", "libc++"] >>= \x -> (length <$> x) @?= Right 3
 
 infoTest' :: Manager -> Assertion
 infoTest' m = info m ["aura1234567"] >>= \x -> (null <$> x) @?= Right True