diff --git a/captain.sh b/captain.sh
index ff27030..ed46db4 100755
--- a/captain.sh
+++ b/captain.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 kraken="kraken"
-bootstrap_commits=(cf46fb13afe66ba475db9725e9269c9c1cd3bbc3 2cd43e5a217318c70097334b3598d2924f64b362 2051f54b559ac5edf67277d4f1134aca2cb9215d ecbbcb4eda56e2467efb0a04e7d668b95856aa4b d126cbf24ba8b26e3814e2260d555ecaee86508c 947384cced5397a517a71963edc8f47e668d734f)
+bootstrap_commits=(cf46fb13afe66ba475db9725e9269c9c1cd3bbc3 2cd43e5a217318c70097334b3598d2924f64b362 2051f54b559ac5edf67277d4f1134aca2cb9215d ecbbcb4eda56e2467efb0a04e7d668b95856aa4b d126cbf24ba8b26e3814e2260d555ecaee86508c 947384cced5397a517a71963edc8f47e668d734f cfcaff7887a804fe77dadaf2ebb0251d6e8ae8e2)
 
 
 # Echo version string to a file included by kraken.krak
diff --git a/stdlib/ast_transformation.krak b/stdlib/ast_transformation.krak
index 7466720..6e4438d 100644
--- a/stdlib/ast_transformation.krak
+++ b/stdlib/ast_transformation.krak
@@ -237,8 +237,6 @@ obj ast_transformation (Object) {
             parameters.add(ast_identifier_ptr(concat_symbol_tree(get_node("identifier", child)), param_type, null<ast_node>()))
         })
         var is_variadic = get_node("\"...\"", node) != null<tree<symbol>>()
-        if (is_variadic)
-            println(function_name + " IS VARIDIC")
         // figure out function type and make function_node
         var function_node = ast_function_ptr(function_name, type_ptr(parameters.map(fun(parameter: *ast_node): *type return parameter->identifier.type;), return_type, 0, false, is_variadic), parameters, get_node("\"ext\"", node) != null<tree<symbol>>(), is_variadic)
         // fix up the enclosing_scope's
diff --git a/stdlib/io.krak b/stdlib/io.krak
index df895ff..8c3797d 100644
--- a/stdlib/io.krak
+++ b/stdlib/io.krak
@@ -14,7 +14,7 @@ fun println<T>(toPrint: T) : void {
 fun print<T>(toPrint: *T)
     print((toPrint) cast ulong)
 
-ext fun printf(fmt_str: *char, to_print: *char): int
+ext fun printf(fmt_str: *char, ...): int
 ext fun fflush(file: int): int
 fun print(toPrint: *char) : void {
     printf("%s", toPrint)
@@ -38,7 +38,7 @@ fun print(toPrint: bool): void {
 	return;
 }
 
-ext fun snprintf(to_str: *char, num: ulong, format: *char, d: double): int
+ext fun snprintf(to_str: *char, num: ulong, format: *char, ...): int
 fun print(toPrint: float)
     print((toPrint) cast double)
 
@@ -55,7 +55,7 @@ fun print<T>(toPrint: T): void
 // Ok, just some DEAD simple file io for now
 ext fun fopen(path: *char, mode: *char): *void
 ext fun fclose(file: *void): int
-ext fun fprintf(file: *void, format: *char, data: *char): int
+ext fun fprintf(file: *void, format: *char, ...): int
 ext fun ftell(file: *void): long
 ext fun fseek(file: *void, offset: long, whence: int): int
 ext fun fread(ptr: *void, size: ulong, nmemb: ulong, file: *void): ulong