diff --git a/build/exe/doliwamp/doliwamp2.4.iss b/build/exe/doliwamp/doliwamp2.4.iss
index e4d0e2798db..018864f43bc 100644
--- a/build/exe/doliwamp/doliwamp2.4.iss
+++ b/build/exe/doliwamp/doliwamp2.4.iss
@@ -23,7 +23,7 @@ DefaultDirName=c:\dolibarr
 DefaultGroupName=Dolibarr
 LicenseFile=COPYING
 ;Compression=none
-Compression=lzma/fast
+Compression=lzma
 SolidCompression=yes
 WizardImageFile=build\exe\doliwamp\doliwamp.bmp
 WizardSmallImageFile=build\exe\doliwamp\doliwampsmall.bmp