diff --git a/apps/rbcodecconfig.h b/apps/rbcodecconfig.h
index cc51595cc4..c92415979f 100644
--- a/apps/rbcodecconfig.h
+++ b/apps/rbcodecconfig.h
@@ -1,7 +1,8 @@
 #ifndef RBCODECCONFIG_H_INCLUDED
 #define RBCODECCONFIG_H_INCLUDED
 
-#include "config.h"
+/* Explicit path to avoid issues with name clashes (libopus) */
+#include "../firmware/export/config.h"
 
 #ifndef __ASSEMBLER__
 
diff --git a/lib/rbcodec/codecs/codecs.make b/lib/rbcodec/codecs/codecs.make
index 08554d9628..13ad28fa65 100644
--- a/lib/rbcodec/codecs/codecs.make
+++ b/lib/rbcodec/codecs/codecs.make
@@ -21,6 +21,19 @@ OTHER_INC += -I$(RBCODECLIB_DIR)/codecs/lib
 # extra libraries
 CODEC_LIBS := $(CODECLIB) $(FIXEDPOINTLIB)
 
+# compile flags for codecs
+CODECFLAGS := $(CFLAGS) $(RBCODEC_CFLAGS) -fstrict-aliasing \
+			 -I$(RBCODECLIB_DIR)/codecs -I$(RBCODECLIB_DIR)/codecs/lib -DCODEC
+
+ifdef APP_TYPE
+ CODECLDFLAGS = $(SHARED_LDFLAG) -Wl,--gc-sections -Wl,-Map,$(CODECDIR)/$*.map
+ CODECFLAGS += $(SHARED_CFLAGS) # <-- from Makefile
+else
+ CODECLDFLAGS = -T$(CODECLINK_LDS) -Wl,--gc-sections -Wl,-Map,$(CODECDIR)/$*.map
+ CODECFLAGS += -UDEBUG -DNDEBUG
+endif
+CODECLDFLAGS += $(GLOBAL_LDOPTS)
+
 # the codec libraries
 include $(RBCODECLIB_DIR)/codecs/demac/libdemac.make
 include $(RBCODECLIB_DIR)/codecs/liba52/liba52.make
@@ -53,10 +66,6 @@ include $(RBCODECLIB_DIR)/codecs/libgme/libkss.make
 include $(RBCODECLIB_DIR)/codecs/libgme/libemu2413.make
 include $(RBCODECLIB_DIR)/codecs/libopus/libopus.make
 
-# compile flags for codecs
-CODECFLAGS = $(CFLAGS) $(RBCODEC_CFLAGS) -fstrict-aliasing \
-			 -I$(RBCODECLIB_DIR)/codecs -I$(RBCODECLIB_DIR)/codecs/lib -DCODEC
-
 # set CODECFLAGS per codec lib, since gcc takes the last -Ox and the last
 # in a -ffoo -fno-foo pair, there is no need to filter them out
 $(A52LIB) : CODECFLAGS += -O1
@@ -188,15 +197,6 @@ $(CODECDIR)/%.o: $(RBCODECLIB_DIR)/codecs/%.S
 	$(call PRINTS,CC $(subst $(ROOTDIR)/,,$<))$(CC) \
 		-I$(dir $<) $(CODECFLAGS) $(ASMFLAGS) -c $< -o $@
 
-ifdef APP_TYPE
- CODECLDFLAGS = $(SHARED_LDFLAG) -Wl,--gc-sections -Wl,-Map,$(CODECDIR)/$*.map
- CODECFLAGS += $(SHARED_CFLAGS) # <-- from Makefile
-else
- CODECLDFLAGS = -T$(CODECLINK_LDS) -Wl,--gc-sections -Wl,-Map,$(CODECDIR)/$*.map
- CODECFLAGS += -UDEBUG -DNDEBUG
-endif
-CODECLDFLAGS += $(GLOBAL_LDOPTS)
-
 $(CODECDIR)/%-pre.map: $(CODEC_CRT0) $(CODECLINK_LDS) $(CODECDIR)/%.o $(CODECS_LIBS)
 	$(call PRINTS,LD $(@F))$(CC) $(CODECFLAGS) -o $(CODECDIR)/$*-pre.elf \
 		$(filter %.o, $^) \
diff --git a/lib/rbcodec/codecs/libopus/libopus.make b/lib/rbcodec/codecs/libopus/libopus.make
index ab93a5a5cc..5cfb34aac3 100644
--- a/lib/rbcodec/codecs/libopus/libopus.make
+++ b/lib/rbcodec/codecs/libopus/libopus.make
@@ -13,10 +13,12 @@ OPUSLIB_SRC := $(call preprocess, $(RBCODECLIB_DIR)/codecs/libopus/SOURCES)
 OPUSLIB_OBJ := $(call c2obj, $(OPUSLIB_SRC))
 
 # codec specific compilation flags
-$(OPUSLIB) : CODECFLAGS += -DHAVE_CONFIG_H \
+# prepend paths to avoid name clash issues
+$(OPUSLIB) : CODECFLAGS := -DHAVE_CONFIG_H \
    -I$(RBCODECLIB_DIR)/codecs/libopus \
    -I$(RBCODECLIB_DIR)/codecs/libopus/celt \
-   -I$(RBCODECLIB_DIR)/codecs/libopus/silk
+   -I$(RBCODECLIB_DIR)/codecs/libopus/silk \
+   $(CODECFLAGS)
 
 $(OPUSLIB): $(OPUSLIB_OBJ)
 	$(SILENT)$(shell rm -f $@)
diff --git a/lib/rbcodec/codecs/libopus/opus_config.h b/lib/rbcodec/codecs/libopus/opus_config.h
index 922ec607e5..39abc8d8d4 100644
--- a/lib/rbcodec/codecs/libopus/opus_config.h
+++ b/lib/rbcodec/codecs/libopus/opus_config.h
@@ -1,7 +1,7 @@
 #ifndef CONFIG_H
 #define CONFIG_H
 
-#include "config.h"
+#include "rbcodecconfig.h"
 #include "codeclib.h"
 #include "ogg/ogg.h"