diff --git a/git-gui.sh b/git-gui.sh
index f9b323a..1f5acc3 100755
--- a/git-gui.sh
+++ b/git-gui.sh
@@ -556,6 +556,9 @@
 
 	_trace_exec [concat $opt $cmdp $args]
 	set result [eval exec $opt $cmdp $args]
+	if {[encoding system] != "utf-8"} {
+		set result [encoding convertfrom utf-8 [encoding convertto $result]]
+	}
 	if {$::_trace} {
 		puts stderr "< $result"
 	}
@@ -1111,7 +1114,7 @@
 				[list git_read config] \
 				$args \
 				[list --null --list]]
-			fconfigure $fd_rc -translation binary
+			fconfigure $fd_rc -translation binary -encoding utf-8
 			set buf [read $fd_rc]
 			close $fd_rc
 		}
@@ -1691,7 +1694,7 @@
 		set i [split [string range $buf_rdi $c [expr {$z1 - 2}]] { }]
 		set p [string range $buf_rdi $z1 [expr {$z2 - 1}]]
 		merge_state \
-			[encoding convertfrom $p] \
+			[encoding convertfrom utf-8 $p] \
 			[lindex $i 4]? \
 			[list [lindex $i 0] [lindex $i 2]] \
 			[list]
@@ -1724,7 +1727,7 @@
 		set i [split [string range $buf_rdf $c [expr {$z1 - 2}]] { }]
 		set p [string range $buf_rdf $z1 [expr {$z2 - 1}]]
 		merge_state \
-			[encoding convertfrom $p] \
+			[encoding convertfrom utf-8 $p] \
 			?[lindex $i 4] \
 			[list] \
 			[list [lindex $i 0] [lindex $i 2]]
@@ -1747,7 +1750,7 @@
 	set pck [split $buf_rlo "\0"]
 	set buf_rlo [lindex $pck end]
 	foreach p [lrange $pck 0 end-1] {
-		set p [encoding convertfrom $p]
+		set p [encoding convertfrom utf-8 $p]
 		if {[string index $p end] eq {/}} {
 			set p [string range $p 0 end-1]
 		}