diff --git a/python/ribasim/ribasim/styles.py b/python/ribasim/ribasim/styles.py
index af0e49f59..21c6ee7db 100644
--- a/python/ribasim/ribasim/styles.py
+++ b/python/ribasim/ribasim/styles.py
@@ -92,7 +92,7 @@ def _add_styles_to_geopackage(gpkg_path: Path, layer: str):
             conn.execute(CREATE_TABLE_SQL)
             conn.execute(INSERT_CONTENTS_SQL)
 
-        style_name = f"{layer.replace(" / ", "_")}Style"
+        style_name = f"{layer.replace(' / ', '_')}Style"
         style_qml = STYLES_DIR / f"{style_name}.qml"
         style_sld = STYLES_DIR / f"{style_name}.sld"
 
diff --git a/ribasim_qgis/core/nodes.py b/ribasim_qgis/core/nodes.py
index 70e85f6d0..dd8cf4291 100644
--- a/ribasim_qgis/core/nodes.py
+++ b/ribasim_qgis/core/nodes.py
@@ -124,7 +124,7 @@ def set_read_only(self) -> None:
 
     @property
     def renderer(self) -> QgsCategorizedSymbolRenderer:
-        fn = STYLE_DIR / f"{self.input_type().replace(" / ", "_")}Style.sld"
+        fn = STYLE_DIR / f"{self.input_type().replace(' / ', '_')}Style.sld"
         if fn.is_file():
             document = QDomDocument()
             document.setContent(fn.read_text())