diff --git a/src/core/peg.c b/src/core/peg.c
index fa7aef20..11504cda 100644
--- a/src/core/peg.c
+++ b/src/core/peg.c
@@ -735,12 +735,6 @@ static const uint8_t *peg_getrange(Builder *b, Janet x) {
     return str;
 }
 
-static int32_t peg_getboolean(Builder *b, Janet x) {
-    if (!janet_checktype(x, JANET_BOOLEAN))
-        peg_panicf(b, "expected boolean, got %v", x);
-    return janet_unwrap_boolean(x);
-}
-
 static int32_t peg_getinteger(Builder *b, Janet x) {
     if (!janet_checkint(x))
         peg_panicf(b, "expected integer, got %v", x);
@@ -1269,7 +1263,7 @@ static uint32_t peg_compile1(Builder *b, Janet peg) {
             return 0;
 
         case JANET_BOOLEAN: {
-            int n = peg_getboolean(b, peg);
+            int n = janet_unwrap_boolean(peg);
             Reserve r = reserve(b, 2);
             emit_1(r, n ? RULE_NCHAR : RULE_NOTNCHAR, 0);
             break;