diff --git a/src/dec/Makefile.in b/src/dec/Makefile.in
index 0f8674d7..3d07b559 100644
--- a/src/dec/Makefile.in
+++ b/src/dec/Makefile.in
@@ -218,7 +218,7 @@ libwebpdecode_la_SOURCES = bits.h vp8i.h yuv.h bits.c dsp.c frame.c \
 libwebpdecode_la_LDFLAGS = -version-info 0:0:0
 libwebpdecodeinclude_HEADERS = ../webp/decode.h ../webp/decode_vp8.h ../webp/types.h
 libwebpdecodeincludedir = $(includedir)/webp
-noinst_HEADERS = bits.h vp8i.h yuv.h
+noinst_HEADERS = bits.h vp8i.h webpi.h yuv.h
 noinst_LTLIBRARIES = libwebpdecode.la
 all: all-am
 
@@ -263,7 +263,7 @@ clean-noinstLTLIBRARIES:
 	  echo "rm -f \"$${dir}/so_locations\""; \
 	  rm -f "$${dir}/so_locations"; \
 	done
-libwebpdecode.la: $(libwebpdecode_la_OBJECTS) $(libwebpdecode_la_DEPENDENCIES) 
+libwebpdecode.la: $(libwebpdecode_la_OBJECTS) $(libwebpdecode_la_DEPENDENCIES)
 	$(libwebpdecode_la_LINK)  $(libwebpdecode_la_OBJECTS) $(libwebpdecode_la_LIBADD) $(LIBS)
 
 mostlyclean-compile: