diff --git a/src/libpostal.c b/src/libpostal.c
index 7c56cc9c..9c3624fb 100644
--- a/src/libpostal.c
+++ b/src/libpostal.c
@@ -37,27 +37,27 @@ static normalize_options_t LIBPOSTAL_DEFAULT_OPTIONS = {
         .languages = NULL,
         .num_languages = 0,
         .address_components = ADDRESS_NAME | ADDRESS_HOUSE_NUMBER | ADDRESS_STREET | ADDRESS_UNIT,
-        .latin_ascii = 1,
-        .transliterate = 1,
-        .strip_accents = 1,
-        .decompose = 1,
-        .lowercase = 1,
-        .trim_string = 1,
-        .drop_parentheticals = 1,
-        .replace_numeric_hyphens = 0,
-        .delete_numeric_hyphens = 0,
-        .split_alpha_from_numeric = 1,
-        .replace_word_hyphens = 1,
-        .delete_word_hyphens = 1,
-        .delete_final_periods = 1,
-        .delete_acronym_periods = 1,
-        .drop_english_possessives = 1,
-        .delete_apostrophes = 1,
-        .expand_numex = 1,
-        .roman_numerals = 1
+        .latin_ascii = true,
+        .transliterate = true,
+        .strip_accents = true,
+        .decompose = true,
+        .lowercase = true,
+        .trim_string = true,
+        .drop_parentheticals = true,
+        .replace_numeric_hyphens = false,
+        .delete_numeric_hyphens = false,
+        .split_alpha_from_numeric = true,
+        .replace_word_hyphens = true,
+        .delete_word_hyphens = true,
+        .delete_final_periods = true,
+        .delete_acronym_periods = true,
+        .drop_english_possessives = true,
+        .delete_apostrophes = true,
+        .expand_numex = true,
+        .roman_numerals = true
 };
 
-inline normalize_options_t get_libpostal_default_options(void) {
+normalize_options_t get_libpostal_default_options(void) {
     return LIBPOSTAL_DEFAULT_OPTIONS;
 }
 
diff --git a/src/libpostal.h b/src/libpostal.h
index a817df0d..8525e03e 100644
--- a/src/libpostal.h
+++ b/src/libpostal.h
@@ -41,24 +41,24 @@ typedef struct normalize_options {
     uint16_t address_components;
 
     // String options
-    uint64_t latin_ascii:1;
-    uint64_t transliterate:1;
-    uint64_t strip_accents:1;
-    uint64_t decompose:1;
-    uint64_t lowercase:1;
-    uint64_t trim_string:1;
-    uint64_t drop_parentheticals:1;
-    uint64_t replace_numeric_hyphens:1;
-    uint64_t delete_numeric_hyphens:1;
-    uint64_t split_alpha_from_numeric:1;
-    uint64_t replace_word_hyphens:1;
-    uint64_t delete_word_hyphens:1;
-    uint64_t delete_final_periods:1;
-    uint64_t delete_acronym_periods:1;
-    uint64_t drop_english_possessives:1;
-    uint64_t delete_apostrophes:1;
-    uint64_t expand_numex:1;
-    uint64_t roman_numerals:1;
+    bool latin_ascii;
+    bool transliterate;
+    bool strip_accents;
+    bool decompose;
+    bool lowercase;
+    bool trim_string;
+    bool drop_parentheticals;
+    bool replace_numeric_hyphens;
+    bool delete_numeric_hyphens;
+    bool split_alpha_from_numeric;
+    bool replace_word_hyphens;
+    bool delete_word_hyphens;
+    bool delete_final_periods;
+    bool delete_acronym_periods;
+    bool drop_english_possessives;
+    bool delete_apostrophes;
+    bool expand_numex;
+    bool roman_numerals;
 
 } normalize_options_t;