diff --git a/hardsup/el734_utility.c b/hardsup/el734_utility.c
index f5924f48..53efe510 100644
--- a/hardsup/el734_utility.c
+++ b/hardsup/el734_utility.c
@@ -808,7 +808,7 @@
 #else
 #include    <unistd.h>
 #ifdef FORTIFY
-#include    <fortify/fortify.h>
+#include    <fortify.h>
 #endif
 #endif
 /*-----------------------------------------------------------------*/
diff --git a/hardsup/el737_utility.c b/hardsup/el737_utility.c
index 1a5bde8c..383ea83f 100644
--- a/hardsup/el737_utility.c
+++ b/hardsup/el737_utility.c
@@ -640,7 +640,7 @@
 #else
   #include    <unistd.h>
   #ifdef FORTIFY
-    #include    <fortify/fortify.h>
+    #include    <fortify.h>
   #endif
 #endif
 /*-----------------------------------------------------------------*/
diff --git a/hardsup/makeprint.c b/hardsup/makeprint.c
index a5e6be6b..b35188e2 100644
--- a/hardsup/makeprint.c
+++ b/hardsup/makeprint.c
@@ -154,7 +154,7 @@
 #include    <stdio.h>
 #include    <string.h>
 #ifdef FORTIFY
-  #include    <fortify/fortify.h>
+  #include    <fortify.h>
 #endif
 
 #include    <sinq_prototypes.h>