diff --git a/crypto/md5/asm/md5-x86_64.pl b/crypto/md5/asm/md5-x86_64.pl
index 9a6fa6722..05d040f0b 100755
--- a/crypto/md5/asm/md5-x86_64.pl
+++ b/crypto/md5/asm/md5-x86_64.pl
@@ -19,6 +19,7 @@ my $code;
 sub round1_step
 {
     my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $T_i = unpack("l",pack("l", hex($T_i))); # convert to 32-bit signed decimal
     $code .= " mov	0*4(%rsi),	%r10d		/* (NEXT STEP) X[0] */\n" if ($pos == -1);
     $code .= " mov	%edx,		%r11d		/* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
     $code .= <<EOF;
@@ -42,6 +43,7 @@ EOF
 sub round2_step
 {
     my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $T_i = unpack("l",pack("l", hex($T_i))); # convert to 32-bit signed decimal
     $code .= " mov	1*4(%rsi),	%r10d		/* (NEXT STEP) X[1] */\n" if ($pos == -1);
     $code .= " mov	%ecx,		%r11d		/* (NEXT STEP) y' = %ecx */\n" if ($pos == -1);
     $code .= <<EOF;
@@ -65,6 +67,7 @@ EOF
 sub round3_step
 {
     my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $T_i = unpack("l",pack("l", hex($T_i))); # convert to 32-bit signed decimal
     $code .= " mov	5*4(%rsi),	%r10d		/* (NEXT STEP) X[5] */\n" if ($pos == -1);
     $code .= " mov	%ecx,		%r11d		/* (NEXT STEP) y' = %ecx */\n" if ($pos == -1);
     $code .= <<EOF;
@@ -87,6 +90,7 @@ EOF
 sub round4_step
 {
     my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
+    $T_i = unpack("l",pack("l", hex($T_i))); # convert to 32-bit signed decimal
     $code .= " mov	0*4(%rsi),	%r10d		/* (NEXT STEP) X[0] */\n" if ($pos == -1);
     $code .= " mov	\$0xffffffff,	%r11d\n" if ($pos == -1);
     $code .= " xor	%edx,		%r11d		/* (NEXT STEP) not z' = not %edx*/\n"