diff --git a/src/core/strings/str8/str8.h b/src/core/strings/str8/str8.h
index 523006d..8557db0 100644
--- a/src/core/strings/str8/str8.h
+++ b/src/core/strings/str8/str8.h
@@ -17,12 +17,16 @@ struct str8 {
 
 typedef const Str8 Str8RO;
 
+// Utilities to be used with printf functions
+#define WAPP_STR8_SPEC "%.*s"
+#define wapp_str8_varg(STRING) (int)STRING.size, STRING.buf
+
 #define wapp_str8_buf(CAPACITY) ((Str8){.capacity = CAPACITY, .size = 0, .buf = (c8[CAPACITY]){0}})
 
 // Utilises the fact that memcpy returns pointer to dest buffer and that getting
 // address of compound literals is valid in C to create a string on the stack
 #define wapp_str8_lit(STRING) ((Str8){.capacity = (sizeof(STRING) - 1) * 2, \
-                                      .size     = sizeof(STRING) - 1,     \
+                                      .size     = sizeof(STRING) - 1,       \
                                       .buf      = memcpy(&((c8 [sizeof(STRING) * 2]){0}), STRING, sizeof(STRING))})
 #define wapp_str8_lit_ro(STRING) ((Str8RO){.capacity = sizeof(STRING) - 1, \
                                            .size     = sizeof(STRING) - 1, \