diff --git a/Makefile.in b/Makefile.in
index 544b096..5fb039c 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -3,6 +3,7 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 COMPRESS=@PYTHON@ ../compress-font.py
+OTSSANITIZE=@OTSSANITIZE@
 
 # Build all the open source fonts
 all: Asana DejaVu FiraMath Garamond GFS_NeoHellenic LatinModern LeteSansMath Libertinus NewComputerModern NewComputerModernSans NotoSans Plex STIX TeXGyreBonum TeXGyrePagella TeXGyreSchola TeXGyreTermes XITS
@@ -28,8 +29,9 @@ Asana/Asana-Math:
 
 Asana: Asana/Asana-Math
 	 # Keep only the otf files and doc and convert into WOFF.
-	cp $</* $@; cd $@; rm *.TTC; \
-	$(COMPRESS) Asana-Math.otf; rm *.otf;
+	cp $</* $@; cd $@; rm *.TTC;
+	cd $@ && $(OTSSANITIZE) Asana-Math.otf
+	cd $@ && $(COMPRESS) Asana-Math.otf; rm *.otf;
 	 # The Asana package on CTAN does not contain any OFL license, so we
 	 # complete the copyright information here.
 	cp $</OFL-FAQ.txt $@;
@@ -92,7 +94,7 @@ FiraMath: FiraMath/firamath
 	 # Copy the fonts and doc and convert into WOFF
 	cp $</LICENSE $/README.md $</*.otf $@
 	cd $@; \
-	for f in `ls *.otf`; do $(COMPRESS) $$f; done; rm *.otf
+	for f in `ls *.otf`; do $(OTSSANITIZE) $$f ; $(COMPRESS) $$f; done; rm *.otf
 	 # Generate CheckFont logs
 	@PYTHON@ CheckFont.py $@/FiraMath-Regular.woff \
 	> $@/CheckFontLog.txt 2> $@/CheckFontError.txt
diff --git a/configure.ac b/configure.ac
index b552650..cfc13a0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,6 +14,7 @@ AC_CHECK_PROGS(SED, sed)
 AC_CHECK_PROGS(UNZIP, unzip)
 AC_CHECK_PROGS(WGET, wget)
 AC_CHECK_PROGS(ZIP, zip)
+AC_CHECK_PROGS(OTSSANITIZE, ots-sanitize)
 
 AC_CONFIG_FILES(Makefile)
 AC_OUTPUT