diff --git a/libc/src/__support/macros/properties/types.h b/libc/src/__support/macros/properties/types.h
index 5ea54a4f9ef9dd..30c742c007ca19 100644
--- a/libc/src/__support/macros/properties/types.h
+++ b/libc/src/__support/macros/properties/types.h
@@ -27,7 +27,7 @@
 #define LIBC_TYPES_LONG_DOUBLE_IS_X86_FLOAT80
 #elif (LDBL_MANT_DIG == 113)
 #define LIBC_TYPES_LONG_DOUBLE_IS_FLOAT128
-#elif (LDBL_MANT_DIG == 103)
+#elif (LDBL_MANT_DIG == 106)
 #define LIBC_TYPES_LONG_DOUBLE_IS_DOUBLE_DOUBLE
 #endif