diff --git a/Configure b/Configure
index 0512c6149bd02dc07a231fc12e26b40f5040f361..2787b9e5c6eb77ba09b02432ecb60c64ddc325c2 100755
--- a/Configure
+++ b/Configure
@@ -191,8 +191,8 @@ my %table=(
 "cc",		"cc:-O::(unknown)::::::",
 
 ####VOS Configurations
-"vos-gcc","gcc:-O3 -Wall -D_POSIX_C_SOURCE=200112L -D_BSD -DB_ENDIAN::(unknown):VOS:-Wl,-map:BN_LLONG:${no_asm}:::::.so:",
-"debug-vos-gcc","gcc:-O0 -g -Wall -D_POSIX_C_SOURCE=200112L -D_BSD -DB_ENDIAN -DBN_DEBUG -DREF_CHECK -DCONF_DEBUG -DCRYPTO_MDEBUG::(unknown):VOS:-Wl,-map:BN_LLONG:${no_asm}:::::.so:",
+"vos-gcc","gcc:-O3 -Wall -D_POSIX_C_SOURCE=200112L -D_BSD -D_VOS_EXTENDED_NAMES -DB_ENDIAN::(unknown):VOS:-Wl,-map:BN_LLONG:${no_asm}:::::.so:",
+"debug-vos-gcc","gcc:-O0 -g -Wall -D_POSIX_C_SOURCE=200112L -D_BSD -D_VOS_EXTENDED_NAMES -DB_ENDIAN -DBN_DEBUG -DREF_CHECK -DCONF_DEBUG -DCRYPTO_MDEBUG::(unknown):VOS:-Wl,-map:BN_LLONG:${no_asm}:::::.so:",
 
 #### Solaris x86 with GNU C setups
 # -DOPENSSL_NO_INLINE_ASM switches off inline assembler. We have to do it