diff --git a/include/freetype/internal/services/svmetric.h b/include/freetype/internal/services/svmetric.h
index 8b3563b..5a0dc4d 100644
--- a/include/freetype/internal/services/svmetric.h
+++ b/include/freetype/internal/services/svmetric.h
@@ -77,7 +77,7 @@
   typedef void
   (*FT_Metrics_Adjust_Func)( FT_Face  face );
 
-  typedef FT_Error
+  typedef void
   (*FT_Size_Reset_Func)( FT_Size  size );
 
 
diff --git a/src/truetype/ttobjs.c b/src/truetype/ttobjs.c
index 8051f36..ac54e01 100644
--- a/src/truetype/ttobjs.c
+++ b/src/truetype/ttobjs.c
@@ -1182,19 +1182,13 @@
    *     function must take `FT_Size` as a result. The passed `FT_Size` is
    *     expected to point to a `TT_Size`.
    */
-  FT_LOCAL_DEF( FT_Error )
+  FT_LOCAL_DEF( void )
   tt_size_reset_height( FT_Size  ft_size )
   {
     TT_Size           size         = (TT_Size)ft_size;
-    TT_Face           face         = (TT_Face)size->root.face;
+    TT_Face           face         = (TT_Face)ft_size->face;
     FT_Size_Metrics*  size_metrics = &size->hinted_metrics;
 
-    /* copy the result from base layer */
-    *size_metrics = size->root.metrics;
-
-    if ( size_metrics->x_ppem < 1 || size_metrics->y_ppem < 1 )
-      return FT_THROW( Invalid_PPem );
-
     /* This bit flag, if set, indicates that the ppems must be       */
     /* rounded to integers.  Nearly all TrueType fonts have this bit */
     /* set, as hinting won't work really well otherwise.             */
@@ -1212,8 +1206,6 @@
                                FT_MulFix( face->root.height,
                                           size_metrics->y_scale ) );
     }
-
-    return FT_Err_Ok;
   }
 
 
@@ -1233,7 +1225,6 @@
   FT_LOCAL_DEF( FT_Error )
   tt_size_reset( TT_Size  size )
   {
-    FT_Error          error;
     TT_Face           face         = (TT_Face)size->root.face;
     FT_Size_Metrics*  size_metrics = &size->hinted_metrics;
 
@@ -1241,9 +1232,13 @@
     /* invalidate the size object first */
     size->ttmetrics.ppem = 0;
 
-    error = tt_size_reset_height( (FT_Size)size );
-    if ( error )
-      return error;
+    if ( size->root.metrics.x_ppem == 0 || size->root.metrics.y_ppem == 0 )
+      return FT_THROW( Invalid_PPem );
+
+    /* copy the result from base layer */
+    *size_metrics = size->root.metrics;
+
+    tt_size_reset_height( (FT_Size)size );
 
     if ( face->header.Flags & 8 )
     {
diff --git a/src/truetype/ttobjs.h b/src/truetype/ttobjs.h
index 7d0c530..0d8c8eb 100644
--- a/src/truetype/ttobjs.h
+++ b/src/truetype/ttobjs.h
@@ -299,7 +299,7 @@
 
 #endif /* TT_USE_BYTECODE_INTERPRETER */
 
-  FT_LOCAL( FT_Error )
+  FT_LOCAL( void )
   tt_size_reset_height( FT_Size  size );
 
   FT_LOCAL( FT_Error )