diff --git a/pkg/gpxsee.nsi b/pkg/gpxsee.nsi
index 00a494e9..2b8ba45d 100644
--- a/pkg/gpxsee.nsi
+++ b/pkg/gpxsee.nsi
@@ -9,6 +9,8 @@ Name "GPXSee"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}.exe"
+; Compression method
+SetCompressor /SOLID lzma
 
 ; Required execution level 
 RequestExecutionLevel admin
diff --git a/pkg/gpxsee64.nsi b/pkg/gpxsee64.nsi
index 0738bed4..771e14a4 100644
--- a/pkg/gpxsee64.nsi
+++ b/pkg/gpxsee64.nsi
@@ -9,6 +9,8 @@ Name "GPXSee"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}_x64.exe"
+; Compression method
+SetCompressor /SOLID lzma
 
 ; Required execution level 
 RequestExecutionLevel admin