diff --git a/lib/ffmpeg/format_parameters.rb b/lib/ffmpeg/format_parameters.rb
index 37003b5..b8720fa 100644
--- a/lib/ffmpeg/format_parameters.rb
+++ b/lib/ffmpeg/format_parameters.rb
@@ -7,7 +7,6 @@ class FFMPEG::FormatParameters
         fprintf(stderr, "free format parameters\\n");
         av_free(format_parameters);
       }
-
     C
 
     ##
diff --git a/lib/ffmpeg/frame.rb b/lib/ffmpeg/frame.rb
index 8523dfa..28d57cd 100644
--- a/lib/ffmpeg/frame.rb
+++ b/lib/ffmpeg/frame.rb
@@ -162,13 +162,13 @@ def initialize(width=nil, height=nil, pix_fmt=nil)
 
   def type
     case pict_type
-    when I_TYPE ; :I_TYPE
-    when P_TYPE ; :P_TYPE
-    when B_TYPE ; :B_TYPE
-    when S_TYPE ; :S_TYPE
-    when SI_TYPE ; :S_TYPE
-    when SP_TYPE ; :SP_TYPE
-    when BI_TYPE ; :BI_TYPE
+    when I_TYPE  then :I_TYPE
+    when P_TYPE  then :P_TYPE
+    when B_TYPE  then :B_TYPE
+    when S_TYPE  then :S_TYPE
+    when SI_TYPE then :S_TYPE
+    when SP_TYPE then :SP_TYPE
+    when BI_TYPE then :BI_TYPE
     end
   end