diff --git a/dcs.c b/dcs.c
index 6fed8010..07fec5c7 100644
--- a/dcs.c
+++ b/dcs.c
@@ -99,6 +99,14 @@ xtgettcap_reply(struct terminal *term, const char *hex_cap_name, size_t len)
     if (entry == NULL)
         goto err;
 
+    if (entry->value == NULL) {
+        /* Boolean */
+        term_to_slave(term, "\033P1+r", 5);
+        term_to_slave(term, hex_cap_name, len);
+        term_to_slave(term, "\033\\", 2);
+        goto out;
+    }
+
     /*
      * Reply format:
      *    \EP 1 + r cap=value \E\\
diff --git a/scripts/generate-builtin-terminfo.py b/scripts/generate-builtin-terminfo.py
index a58b7da3..9c8807bf 100755
--- a/scripts/generate-builtin-terminfo.py
+++ b/scripts/generate-builtin-terminfo.py
@@ -174,9 +174,6 @@ def main():
         'static const struct foot_terminfo_entry terminfo_capabilities[] = {\n')
 
     for cap in sorted(entry.caps.values()):
-        if isinstance(cap, BoolCapability):
-            continue
-
         name = cap.name
         value = str(cap.value)
 
@@ -194,7 +191,11 @@ def main():
         # Do escape ‘“‘
         name = name.replace('"', '\"')
         value = value.replace('"', '\"')
-        target.write(f'    {{"{name}", "{value}"}},\n')
+
+        if isinstance(cap, BoolCapability):
+            target.write(f'    {{"{name}", NULL}},\n')
+        else:
+            target.write(f'    {{"{name}", "{value}"}},\n')
 
     target.write('};\n')