diff --git a/findversion.sh b/findversion.sh
index 18068ad30b..95ba712014 100755
--- a/findversion.sh
+++ b/findversion.sh
@@ -107,7 +107,7 @@ elif [ -d "$ROOT_DIR/.hg" ]; then
 	HASH=`LC_ALL=C hg id -i | cut -c1-12`
 	REV="h`echo $HASH | cut -c1-8`"
 	BRANCH=`hg branch | sed 's@^default$@@'`
-	REV_NR=`LC_ALL=C hg log -r $HASH:0 -k "svn" -l 1 --template "{desc}\n" | grep "^(svn r[0-9]*)" | head -n 1 | sed "s@.*(svn r\([0-9]*\)).*@\1@"`
+	REV_NR=`LC_ALL=C hg log -f -k "(svn r" -l 1 --template "{desc}\n" | sed "s@.*(svn r\([0-9]*\)).*@\1@"`
 else
 	# We don't know
 	MODIFIED="1"
diff --git a/projects/determineversion.vbs b/projects/determineversion.vbs
index 9d300bd60d..fa4109244b 100755
--- a/projects/determineversion.vbs
+++ b/projects/determineversion.vbs
@@ -249,7 +249,7 @@ Function DetermineSVNVersion()
 							End If ' line <> "default"
 						End If ' Err.Number = 0
 
-						Set oExec = WshShell.Exec("hg log -r " & hash & ":0 -k " & Chr(34) & "svn" & Chr(34) & " -l 1 --template " & Chr(34) & "{desc}\n" & Chr(34) & " ../")
+						Set oExec = WshShell.Exec("hg log -f -k " & Chr(34) & "(svn r" & Chr(34) & " -l 1 --template " & Chr(34) & "{desc}\n" & Chr(34) & " ../")
 						If Err.Number = 0 Then
 							revision = Mid(OExec.StdOut.ReadLine(), 7)
 							revision = Mid(revision, 1, InStr(revision, ")") - 1)