diff --git a/src/libslic3r/Format/SL1.cpp b/src/libslic3r/Format/SL1.cpp
index e9fc058e8..6b7f57b7f 100644
--- a/src/libslic3r/Format/SL1.cpp
+++ b/src/libslic3r/Format/SL1.cpp
@@ -438,7 +438,7 @@ ConfigSubstitutions SL1Reader::read(std::vector<ExPolygons> &slices,
 
 ConfigSubstitutions SL1Reader::read(DynamicPrintConfig &out)
 {
-    ZipperArchive arch = read_zipper_archive(m_fname, {}, {"png"});
+    ZipperArchive arch = read_zipper_archive(m_fname, {"ini"}, {"png", "thumbnail"});
     return out.load(arch.profile, ForwardCompatibilitySubstitutionRule::Enable);
 }
 
diff --git a/src/libslic3r/Format/ZipperArchiveImport.cpp b/src/libslic3r/Format/ZipperArchiveImport.cpp
index 2bd5f555b..657e420bb 100644
--- a/src/libslic3r/Format/ZipperArchiveImport.cpp
+++ b/src/libslic3r/Format/ZipperArchiveImport.cpp
@@ -83,8 +83,15 @@ ZipperArchive read_zipper_archive(const std::string &zipfname,
                             }))
                 continue;
 
-            if (name == CONFIG_FNAME)  { arch.config = read_ini(entry, zip); continue; }
-            if (name == PROFILE_FNAME) { arch.profile = read_ini(entry, zip); continue; }
+            if (name == CONFIG_FNAME)  {
+                arch.config = read_ini(entry, zip);
+                continue;
+            }
+
+            if (name == PROFILE_FNAME) {
+                arch.profile = read_ini(entry, zip);
+                continue;
+            }
 
             auto it = std::lower_bound(
                 arch.entries.begin(), arch.entries.end(),