diff --git a/src/apps/icon-o-matic/import_export/styled_text/StyledTextImporter.cpp b/src/apps/icon-o-matic/import_export/styled_text/StyledTextImporter.cpp
index 208a61baa4..2bb3f848cf 100644
--- a/src/apps/icon-o-matic/import_export/styled_text/StyledTextImporter.cpp
+++ b/src/apps/icon-o-matic/import_export/styled_text/StyledTextImporter.cpp
@@ -221,7 +221,7 @@ StyledTextImporter::Import(Icon* icon, const entry_ref* ref)
 	err = file.GetSize(&size);
 	if (err < B_OK)
 		return err;
-	if (size > UINT32_MAX - 1)
+	if (size > 1 * 1024 * 1024) // Don't load files that big
 		return E2BIG;
 	
 	BMallocIO mio;