diff --git a/src/gui/dataList.cpp b/src/gui/dataList.cpp
index 46d286154..eaa364661 100644
--- a/src/gui/dataList.cpp
+++ b/src/gui/dataList.cpp
@@ -997,8 +997,7 @@ void FurnaceGUI::drawSampleList(bool asChild) {
   }
 }
 
-template <typename func_waveItemData>
-void FurnaceGUI::waveListHorizontalGroup(float* wavePreview, int dir, int count, const func_waveItemData& waveItemData) {
+template <typename func_waveItemData> void FurnaceGUI::waveListHorizontalGroup(float* wavePreview, int dir, int count, const func_waveItemData& waveItemData) {
   if (count==0) return;
 
   float idealWidthMin=225.0f*dpiScale;
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 4a7e9b40e..33d09d9a4 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -2817,8 +2817,7 @@ class FurnaceGUI {
   void actualWaveList();
   void actualSampleList();
 
-  template <typename func_waveItemData>
-  void waveListHorizontalGroup(float* wavePreview, int dir, int count, const func_waveItemData& waveItemData);
+  template <typename func_waveItemData> void waveListHorizontalGroup(float* wavePreview, int dir, int count, const func_waveItemData& waveItemData);
   void insListItem(int index, int dir, int asset);
   void waveListItem(int index, float* wavePreview, int dir, int asset);
   void sampleListItem(int index, int dir, int asset);