diff --git a/lib/decoding/osmocom/coding/gsm0503.h b/lib/decoding/osmocom/gsm/gsm0503.h
similarity index 97%
rename from lib/decoding/osmocom/coding/gsm0503.h
rename to lib/decoding/osmocom/gsm/gsm0503.h
index ccd421a..44df4ad 100644
--- a/lib/decoding/osmocom/coding/gsm0503.h
+++ b/lib/decoding/osmocom/gsm/gsm0503.h
@@ -38,7 +38,7 @@
 
 /*! structure describing Extended RACH (11 bit) convolutional code.
  */
-extern const struct osmo_conv_code gsm0503_rach_ext;
+//extern const struct osmo_conv_code gsm0503_rach_ext;
 
 /*! structure describing SCH convolutional code.
  */
@@ -60,13 +60,13 @@
  * G0 = 1 + D3 + D4
  * G1 = 1 + D + D3 + D4
  */
-extern const struct osmo_conv_code gsm0503_cs2_np;
+//extern const struct osmo_conv_code gsm0503_cs2_np;
 
 /*! structure describing CS3 convolutional code (non-punctured):.
  * G0 = 1 + D3 + D4
  * G1 = 1 + D + D3 + D4
  */
-extern const struct osmo_conv_code gsm0503_cs3_np;
+//extern const struct osmo_conv_code gsm0503_cs3_np;
 
 /*! structure describing TCH/AFS 12.2 kbits convolutional code:.
  * 250 bits block, rate 1/2, punctured