diff --git a/aegisub/libffms/Makefile b/aegisub/libffms/Makefile
index d315b25f6..72362a441 100644
--- a/aegisub/libffms/Makefile
+++ b/aegisub/libffms/Makefile
@@ -1,6 +1,6 @@
 include ../Makefile.inc
 
-CXXFLAGS = -Icore -Iinclude -D__UNIX__ -DFFMS_EXPORTS -DHAVE_STRLCPY -D__STDC_CONSTANT_MACROS
+CXXFLAGS = -Icore -Iinclude -D__UNIX__ -DFFMS_EXPORTS -DHAVE_STRLCPY -D__STDC_CONSTANT_MACROS -fPIC
 CXXFLAGS += $(CFLAGS_LIBAVFORMAT) $(CFLAGS_LIBAVCODEC) $(CFLAGS_LIBAVUTIL) $(CFLAGS_LIBPOSTPROC)
 
 LIB = libffmpegsource_aegisub.a