diff --git a/rtjson.h b/rtjson.h
index 364c8ab..d752fe3 100644
--- a/rtjson.h
+++ b/rtjson.h
@@ -131,6 +131,8 @@ ParseNumber(s8 text, isize *_at, isize *current_line, s8 file, i64 *_i, f64 *_f)
 		s8 n = {.data = &text.data[at], .length = len};
 		s8_parse_f64_result parsed = S8ParseF64(n);
 		*_f = parsed.f;
+		at += len;
+		*_at = at;
 		return parsed.ok ? DOUBLE : NOT_A_NUMBER;
 	}
 	else
@@ -138,6 +140,8 @@ ParseNumber(s8 text, isize *_at, isize *current_line, s8 file, i64 *_i, f64 *_f)
 		s8 n = {.data = &text.data[at], .length = len};
 		s8_parse_i64_result parsed = S8ParseI64(n, 10);
 		*_i = parsed.i;
+		at += len;
+		*_at = at;
 		return parsed.ok ? INT : NOT_A_NUMBER;
 	}
 }