diff --git a/tools/install/create_lazarus_deb.sh b/tools/install/create_lazarus_deb.sh
index c91191ab66..2954924514 100755
--- a/tools/install/create_lazarus_deb.sh
+++ b/tools/install/create_lazarus_deb.sh
@@ -19,7 +19,10 @@ fi
 
 LazVersionPostfix=
 if [ "$1" = "append-revision" ]; then
-  LazVersionPostfix=.$(./get_lazarus_revision.sh | sed -e 's/[^0-9]//')
+  LazVersionPostfix=$(./get_lazarus_revision.sh .)
+  if [ -n "$LazVersionPostfix" ]; then
+    LazVersionPostfix=.$LazVersionPostfix
+  fi
   shift
 fi
 
diff --git a/tools/install/get_lazarus_revision.sh b/tools/install/get_lazarus_revision.sh
index dd3fff1436..561871aaaf 100755
--- a/tools/install/get_lazarus_revision.sh
+++ b/tools/install/get_lazarus_revision.sh
@@ -1,11 +1,6 @@
 #!/usr/bin/env bash
 
-if [ ! -f ../svn2revisioninc ]; then
-  make -C ../../lcl
-  make -C ..
-fi
-
-../svn2revisioninc -s
+echo $(svnversion $1 | sed -e 's/\([0-9]*\).*/\1/')
 
 # end.