diff --git a/openssl-fipshmac b/openssl-fipshmac
new file mode 100755
index 00000000..60fd5051
--- /dev/null
+++ b/openssl-fipshmac
@@ -0,0 +1,12 @@
+#!/bin/sh -e
+
+if [ "$#" -eq 0 ] ; then
+    echo "No library to hash specified." >&2
+    exit 22
+fi
+
+while [ -n "$1" ] ; do
+    dgst="$(openssl dgst -sha256 -mac hmac -macopt hexkey:00000000 "$1")"
+    echo "$dgst" | sed -e 's/^.* //' > "$(dirname "$1")/.$(basename "$1")".hmac
+    shift
+done
diff --git a/src/Makefile.am b/src/Makefile.am
index 4a1ef145..2be01a57 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -46,13 +46,13 @@ mp.S	: mp.pl
 	./mp.pl mp.S
 
 if ICA_FIPS
+FIPSHMAC ?= ${top_srcdir}/openssl-fipshmac
 hmac-file-lnk: hmac-file
 	$(AM_V_GEN) cd ${top_builddir}/src/.libs && ln -sf .libica.so.$(VERSION1).hmac .libica.so.$(MAJOR).hmac
 	$(AM_V_GEN) cd ${top_builddir}/src/.libs && ln -sf .libica-cex.so.$(VERSION1).hmac .libica-cex.so.$(MAJOR).hmac
 
 hmac-file: libica.la libica-cex.la
-	$(AM_V_GEN) openssl dgst -sha256 -mac hmac -macopt hexkey:00000000 ${top_builddir}/src/.libs/libica.so.$(VERSION1) | sed -e 's/^.* //' > ${top_builddir}/src/.libs/.libica.so.$(VERSION1).hmac
-	$(AM_V_GEN) openssl dgst -sha256 -mac hmac -macopt hexkey:00000000 ${top_builddir}/src/.libs/libica-cex.so.$(VERSION1) | sed -e 's/^.* //' > ${top_builddir}/src/.libs/.libica-cex.so.$(VERSION1).hmac
+	$(AM_V_GEN) $(FIPSHMAC) ${top_builddir}/src/.libs/libica.so.$(VERSION1) ${top_builddir}/src/.libs/libica-cex.so.$(VERSION1)
 
 hmac_files = hmac-file hmac-file-lnk