diff --git a/src/Makefile.am b/src/Makefile.am
index 624f979b1..d94fe5356 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,5 +1,5 @@
 font_subset_sources =				\
-	cairo-font-subset.c			\
+	cairo-truetype-subset.c			\
 	cairo-scaled-font-subsets.c		\
 	cairo-scaled-font-subsets-private.h
 if CAIRO_HAS_FT_FONT
diff --git a/src/cairo-font-subset.c b/src/cairo-truetype-subset.c
similarity index 100%
rename from src/cairo-font-subset.c
rename to src/cairo-truetype-subset.c