diff --git a/caribou/caribou.SlackBuild b/caribou/caribou.SlackBuild
index bfb8bd4..ea2905d 100644
--- a/caribou/caribou.SlackBuild
+++ b/caribou/caribou.SlackBuild
@@ -75,6 +75,7 @@ find -L . \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
 patch -p1 < $CWD/3.patch
+patch -p1 < $CWD/unicode_to_keyval-symbol-check.patch
 
 PYTHON="/usr/bin/python3" \
 CFLAGS="$SLKCFLAGS" \
diff --git a/caribou/unicode_to_keyval-symbol-check.patch b/caribou/unicode_to_keyval-symbol-check.patch
new file mode 100644
index 0000000..e7f9acc
--- /dev/null
+++ b/caribou/unicode_to_keyval-symbol-check.patch
@@ -0,0 +1,13 @@
+diff --git a/libcaribou/key-model.vala b/libcaribou/key-model.vala
+index 89015bc..e88342e 100644
+--- a/libcaribou/key-model.vala
++++ b/libcaribou/key-model.vala
+@@ -101,7 +101,7 @@ namespace Caribou {
+                     unichar uc;
+                     while (text.get_next_char (ref index, out uc)) {
+                         uint keyval = Gdk.unicode_to_keyval (uc);
+-                        if (keyval != uc | 0x01000000)
++                        if (keyval != (uc | 0x01000000))
+                             _keyvals += keyval;
+                     }
+                 } else {