2 files changed, 3 insertions, 2 deletions
diff --git a/core/fxge/cfx_font.cpp b/core/fxge/cfx_font.cpp
index 4634b87ac7..d04fc0dac0 100644
--- a/core/fxge/cfx_font.cpp
+++ b/core/fxge/cfx_font.cpp
@@ -501,8 +501,9 @@ void CFX_Font::ClearFaceCache() {
 }
 
 void CFX_Font::AdjustMMParams(int glyph_index,
-                              uint32_t dest_width,
+                              int dest_width,
                               int weight) const {
+  ASSERT(dest_width >= 0);
   FXFT_MM_Var pMasters = nullptr;
   FXFT_Get_MM_Var(m_Face, &pMasters);
   if (!pMasters)
diff --git a/core/fxge/cfx_font.h b/core/fxge/cfx_font.h
index 7ef8ed7fa8..fbf35eaca1 100644
--- a/core/fxge/cfx_font.h
+++ b/core/fxge/cfx_font.h
@@ -84,7 +84,7 @@ class CFX_Font {
 #endif
   uint8_t* GetFontData() const { return m_pFontData; }
   uint32_t GetSize() const { return m_dwSize; }
-  void AdjustMMParams(int glyph_index, uint32_t dest_width, int weight) const;
+  void AdjustMMParams(int glyph_index, int dest_width, int weight) const;
 
   CFX_PathData* LoadGlyphPathImpl(uint32_t glyph_index,
                                   uint32_t dest_width) const;