3 files changed, 9 insertions, 3 deletions

diff --git a/regress/unittests/test_helper/fuzz.c b/regress/unittests/test_helper/fuzz.c
index 63b2370d2..77c6e7cad 100644
--- a/regress/unittests/test_helper/fuzz.c
+++ b/regress/unittests/test_helper/fuzz.c
@@ -24,7 +24,9 @@
 #include <assert.h>
 #include <ctype.h>
 #include <stdio.h>
-#include <stdint.h>
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
diff --git a/regress/unittests/test_helper/test_helper.c b/regress/unittests/test_helper/test_helper.c
index 5881538ee..6faf99e51 100644
--- a/regress/unittests/test_helper/test_helper.c
+++ b/regress/unittests/test_helper/test_helper.c
@@ -24,7 +24,9 @@
 
 #include <fcntl.h>
 #include <stdio.h>
-#include <stdint.h>
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
 #include <stdlib.h>
 #include <string.h>
 #include <assert.h>
diff --git a/regress/unittests/test_helper/test_helper.h b/regress/unittests/test_helper/test_helper.h
index 6ead92a1c..7ba187004 100644
--- a/regress/unittests/test_helper/test_helper.h
+++ b/regress/unittests/test_helper/test_helper.h
@@ -21,7 +21,9 @@
 #define _TEST_HELPER_H
 
 #include <sys/types.h>
-#include <stdint.h>
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
 
 #include <openssl/bn.h>
 #include <openssl/err.h>