diff --git a/.gitignore b/.gitignore
index a435f84..7962b8b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 *.exe
 *.out
+*.sym
 *.bin
 *.o
 *.d
diff --git a/ka/crt/fmt/_doprnt.k b/ka/crt/fmt/doprnt.k
similarity index 98%
rename from ka/crt/fmt/_doprnt.k
rename to ka/crt/fmt/doprnt.k
index f8f4fc9..26aebeb 100644
--- a/ka/crt/fmt/_doprnt.k
+++ b/ka/crt/fmt/doprnt.k
@@ -3,9 +3,9 @@
 
 ;
 ; typedef int (*PUTC)(int ch)
-; int _doprnt(PUTC putc, int n, const char *fmt, va_list ap)
+; int doprnt(PUTC putc, int n, const char *fmt, va_list ap)
 ;
-_doprnt:
+doprnt:
     enter 8
     mov q[rbp-8], rbx
     mov q[rbp-16], nx0
diff --git a/ka/crt/fmt/format.k b/ka/crt/fmt/format.k
index 9ee093e..0c485eb 100644
--- a/ka/crt/fmt/format.k
+++ b/ka/crt/fmt/format.k
@@ -2,6 +2,6 @@
 ; See the LICENSE file in the project root for more information.
 
 include "crt/fmt/itoa.k"
-include "crt/fmt/_doprnt.k"
+include "crt/fmt/doprnt.k"
 include "crt/fmt/printf.k"
 
diff --git a/ka/crt/fmt/printf.k b/ka/crt/fmt/printf.k
index c6a160e..98df0c1 100644
--- a/ka/crt/fmt/printf.k
+++ b/ka/crt/fmt/printf.k
@@ -17,7 +17,7 @@ printf:
     mov ax0, putc
     mov ax1, STRLEN_MAX
     lea ax3, b[rsp+8]
-    jmp _doprnt
+    jmp doprnt
 
 ;
 ; Print a string
diff --git a/vm/a.sym b/vm/a.sym
index a28cff3..31372cb 100644
--- a/vm/a.sym
+++ b/vm/a.sym
@@ -9,26 +9,26 @@ _itoa.next 1048942
 _itoa.fini 1048976
 _itoa.bad 1049048
 _itoa.zero 1049086
-_doprnt 1049120
-_doprnt.main_loop 1049250
-_doprnt.print_regular 1049286
-_doprnt.check_modf 1049344
-_doprnt.modf_s 1049640
-_doprnt.print_string 1049678
-_doprnt.modf_c 1049736
-_doprnt.modf_p 1049778
-_doprnt.modf_x 1049830
-_doprnt.modf_u 1049870
-_doprnt.modf_d 1049910
-_doprnt.modf_o 1049944
-_doprnt.modf_b 1049984
-_doprnt.print_number 1050024
-_doprnt.print_itoa_buf 1050084
-_doprnt.modf_percent 1050156
-_doprnt.bad_modifier 1050194
-_doprnt.nullstring 1050258
-_doprnt.epilogue 1050426
-_doprnt.doput 1050512
+doprnt 1049120
+doprnt.main_loop 1049250
+doprnt.print_regular 1049286
+doprnt.check_modf 1049344
+doprnt.modf_s 1049640
+doprnt.print_string 1049678
+doprnt.modf_c 1049736
+doprnt.modf_p 1049778
+doprnt.modf_x 1049830
+doprnt.modf_u 1049870
+doprnt.modf_d 1049910
+doprnt.modf_o 1049944
+doprnt.modf_b 1049984
+doprnt.print_number 1050024
+doprnt.print_itoa_buf 1050084
+doprnt.modf_percent 1050156
+doprnt.bad_modifier 1050194
+doprnt.nullstring 1050258
+doprnt.epilogue 1050426
+doprnt.doput 1050512
 putc 1050568
 printf 1050586
 print 1050644