diff --git a/ligature/OperatorMonoLig-Medium_charstrings.xml b/ligature/OperatorMonoLig-Medium/charstrings.xml
similarity index 100%
rename from ligature/OperatorMonoLig-Medium_charstrings.xml
rename to ligature/OperatorMonoLig-Medium/charstrings.xml
diff --git a/ligature/OperatorMonoLig-Medium_classdef.xml b/ligature/OperatorMonoLig-Medium/classdef.xml
similarity index 100%
rename from ligature/OperatorMonoLig-Medium_classdef.xml
rename to ligature/OperatorMonoLig-Medium/classdef.xml
diff --git a/ligature/OperatorMonoLig-MediumItalic_cmap.xml b/ligature/OperatorMonoLig-Medium/cmap.xml
similarity index 100%
rename from ligature/OperatorMonoLig-MediumItalic_cmap.xml
rename to ligature/OperatorMonoLig-Medium/cmap.xml
diff --git a/ligature/OperatorMonoLig-Medium_config.xml b/ligature/OperatorMonoLig-Medium/config.xml
similarity index 100%
rename from ligature/OperatorMonoLig-Medium_config.xml
rename to ligature/OperatorMonoLig-Medium/config.xml
diff --git a/ligature/OperatorMonoLig-MediumItalic_glyphs.xml b/ligature/OperatorMonoLig-Medium/glyphs.xml
similarity index 100%
rename from ligature/OperatorMonoLig-MediumItalic_glyphs.xml
rename to ligature/OperatorMonoLig-Medium/glyphs.xml
diff --git a/ligature/OperatorMonoLig-Medium_hmtx.xml b/ligature/OperatorMonoLig-Medium/hmtx.xml
similarity index 100%
rename from ligature/OperatorMonoLig-Medium_hmtx.xml
rename to ligature/OperatorMonoLig-Medium/hmtx.xml
diff --git a/ligature/OperatorMonoLig-Medium_lookup.xml b/ligature/OperatorMonoLig-Medium/lookup.xml
similarity index 100%
rename from ligature/OperatorMonoLig-Medium_lookup.xml
rename to ligature/OperatorMonoLig-Medium/lookup.xml
diff --git a/ligature/OperatorMonoLig-Medium_names.xml b/ligature/OperatorMonoLig-Medium/names.xml
similarity index 100%
rename from ligature/OperatorMonoLig-Medium_names.xml
rename to ligature/OperatorMonoLig-Medium/names.xml
diff --git a/ligature/OperatorMonoLig-MediumItalic_charstrings.xml b/ligature/OperatorMonoLig-MediumItalic/charstrings.xml
similarity index 100%
rename from ligature/OperatorMonoLig-MediumItalic_charstrings.xml
rename to ligature/OperatorMonoLig-MediumItalic/charstrings.xml
diff --git a/ligature/OperatorMonoLig-MediumItalic_classdef.xml b/ligature/OperatorMonoLig-MediumItalic/classdef.xml
similarity index 100%
rename from ligature/OperatorMonoLig-MediumItalic_classdef.xml
rename to ligature/OperatorMonoLig-MediumItalic/classdef.xml
diff --git a/ligature/OperatorMonoLig-Medium_cmap.xml b/ligature/OperatorMonoLig-MediumItalic/cmap.xml
similarity index 100%
rename from ligature/OperatorMonoLig-Medium_cmap.xml
rename to ligature/OperatorMonoLig-MediumItalic/cmap.xml
diff --git a/ligature/OperatorMonoLig-MediumItalic_config.xml b/ligature/OperatorMonoLig-MediumItalic/config.xml
similarity index 100%
rename from ligature/OperatorMonoLig-MediumItalic_config.xml
rename to ligature/OperatorMonoLig-MediumItalic/config.xml
diff --git a/ligature/OperatorMonoLig-Medium_glyphs.xml b/ligature/OperatorMonoLig-MediumItalic/glyphs.xml
similarity index 100%
rename from ligature/OperatorMonoLig-Medium_glyphs.xml
rename to ligature/OperatorMonoLig-MediumItalic/glyphs.xml
diff --git a/ligature/OperatorMonoLig-MediumItalic_hmtx.xml b/ligature/OperatorMonoLig-MediumItalic/hmtx.xml
similarity index 100%
rename from ligature/OperatorMonoLig-MediumItalic_hmtx.xml
rename to ligature/OperatorMonoLig-MediumItalic/hmtx.xml
diff --git a/ligature/OperatorMonoLig-MediumItalic_lookup.xml b/ligature/OperatorMonoLig-MediumItalic/lookup.xml
similarity index 100%
rename from ligature/OperatorMonoLig-MediumItalic_lookup.xml
rename to ligature/OperatorMonoLig-MediumItalic/lookup.xml
diff --git a/ligature/OperatorMonoLig-MediumItalic_names.xml b/ligature/OperatorMonoLig-MediumItalic/names.xml
similarity index 100%
rename from ligature/OperatorMonoLig-MediumItalic_names.xml
rename to ligature/OperatorMonoLig-MediumItalic/names.xml