diff --git a/source/encoders/encoder-ffmpeg.cpp b/source/encoders/encoder-ffmpeg.cpp
index bf718ec2..e45945e8 100644
--- a/source/encoders/encoder-ffmpeg.cpp
+++ b/source/encoders/encoder-ffmpeg.cpp
@@ -74,12 +74,10 @@ extern "C" {
 
 #define ST_I18N_KEYFRAMES ST_I18N_FFMPEG ".KeyFrames"
 #define ST_I18N_KEYFRAMES_INTERVALTYPE ST_I18N_KEYFRAMES ".IntervalType"
-#define ST_I18N_KEYFRAMES_INTERVALTYPE_(x) ST_I18N_KEYFRAMES "." x
+#define ST_I18N_KEYFRAMES_INTERVALTYPE_(x) ST_I18N_KEYFRAMES_INTERVALTYPE "." x
 #define ST_KEY_KEYFRAMES_INTERVALTYPE "KeyFrames.IntervalType"
 #define ST_I18N_KEYFRAMES_INTERVAL ST_I18N_KEYFRAMES ".Interval"
-#define ST_I18N_KEYFRAMES_INTERVAL_SECONDS ST_I18N_KEYFRAMES_INTERVAL ".Seconds"
 #define ST_KEY_KEYFRAMES_INTERVAL_SECONDS "KeyFrames.Interval.Seconds"
-#define ST_I18N_KEYFRAMES_INTERVAL_FRAMES ST_I18N_KEYFRAMES_INTERVAL ".Frames"
 #define ST_KEY_KEYFRAMES_INTERVAL_FRAMES "KeyFrames.Interval.Frames"
 
 using namespace streamfx::encoder::ffmpeg;