diff --git a/Makefile.libretro b/Makefile.libretro
index adb9747..c0a287b 100644
--- a/Makefile.libretro
+++ b/Makefile.libretro
@@ -162,6 +162,7 @@ LIBRETRO_CFLAGS += -I$(GENPLUS_SRC_DIR) \
 		-DUSE_15BPP_RENDERING \
 		$(ENDIANNESS_DEFINES) \
 		$(PLATFORM_DEFINES) \
+		-DINLINE="static inline" \
 		-D__LIBRETRO__
 
 LIBRETRO_LIBS := -lm