diff --git a/snap/snapcraft.template.yaml b/snap/snapcraft.template.yaml
index eea68197a..78f99bafd 100644
--- a/snap/snapcraft.template.yaml
+++ b/snap/snapcraft.template.yaml
@@ -30,7 +30,7 @@ parts:
       - desktop-gtk3
     override-build: |
       set -ex
-      sed -i 's|Icon=mailspring|Icon=/usr/share/pixmaps/mailspring\.png|' usr/share/applications/mailspring.desktop
+      sed -i 's|Icon=mailspring|Icon=/usr/share/pixmaps/mailspring\.png|' $SNAPCRAFT_PART_INSTALL/usr/share/applications/mailspring.desktop
       snapcraftctl build
       mkdir -p $SNAPCRAFT_PART_INSTALL/share/themes
       mkdir -p $SNAPCRAFT_PART_INSTALL/share/icons