diff --git a/tools/install/build_fpc_snaphot_rpm.sh b/tools/install/build_fpc_snaphot_rpm.sh
index 532ef40471..a15348e2a7 100755
--- a/tools/install/build_fpc_snaphot_rpm.sh
+++ b/tools/install/build_fpc_snaphot_rpm.sh
@@ -71,7 +71,7 @@ CompilerVersionStr="$CompilerVersion.$CompilerRelease.$CompilerPatch"
 LazVersion="$CompilerVersion.$CompilerRelease.$CompilerPatch$CompilerMinorPatch"
 
 # set version numbers in all Makefiles
-perl replace_in_files.pl -sR -f '=\d.\d.\d' -r =$LazVersion -m 'Makefile(.fpc)?' $TmpFPCDir/*
+perl replace_in_files.pl -sR -f 'version=\d.\d.\d' -r version=$LazVersion -m 'Makefile(.fpc)?' $TmpFPCDir/*
 
 # create a source tar.gz
 cd $TmpDir
diff --git a/tools/install/create_fpc_deb.sh b/tools/install/create_fpc_deb.sh
index eabb047854..3e71e0d700 100755
--- a/tools/install/create_fpc_deb.sh
+++ b/tools/install/create_fpc_deb.sh
@@ -196,7 +196,7 @@ ReplaceScript=replace_in_files.pl
 
 # set version numbers in all Makefiles
 echo "set version numbers in all Makefiles ..."
-perl replace_in_files.pl -sR -f '=\d.\d.\d' -r =$CompilerVersionStr -m 'Makefile(.fpc)?' $FPCSrcDir/*
+perl replace_in_files.pl -sR -f 'version=\d.\d.\d' -r version=$CompilerVersionStr -m 'Makefile(.fpc)?' $FPCSrcDir/*
 
 
 #------------------------------------------------------------------------------