diff --git a/CHANGELOG.md b/CHANGELOG.md
index 46e3a5b8..266d9b77 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,11 @@
 ### Deprecated
 ### Removed
 ### Fixed
+
+* Logic that repairs invalid key bindings ended up breaking valid key
+  bindings instead (https://codeberg.org/dnkl/foot/issues/407).
+
+
 ### Security
 ### Contributors
 
diff --git a/input.c b/input.c
index bc28bbf2..9a26e778 100644
--- a/input.c
+++ b/input.c
@@ -450,7 +450,7 @@ maybe_repair_key_combo(const struct seat *seat,
 
                 /* Check if key combo’s modifier set intersects */
                 for (size_t j = 0; j < mod_mask_count; j++) {
-                    if (!(mod_masks[j] & mods))
+                    if ((mod_masks[j] & mods) != mod_masks[j])
                         continue;
 
                     char combo[64] = {0};