diff --git a/resources/profiles/PrusaResearch.ini b/resources/profiles/PrusaResearch.ini
index 7d7b4085e..ff0eb1e7a 100644
--- a/resources/profiles/PrusaResearch.ini
+++ b/resources/profiles/PrusaResearch.ini
@@ -6580,7 +6580,7 @@ min_initial_exposure_time = 1
 max_initial_exposure_time = 300
 printer_correction = 1,1,1
 relative_correction = 1,1
-area_fill = 50
+area_fill = 45
 printer_notes = Don't remove the following keywords! These keywords are used in the "compatible printer" condition of the print and filament profiles to link the particular print and filament profiles to this printer profile.\nPRINTER_VENDOR_PRUSA3D\nPRINTER_MODEL_SL1S\n
 
 # The obsolete presets will be removed when upgrading from the legacy configuration structure (up to Slic3r 1.39.2) to 1.40.0 and newer.