diff --git a/devel/zlog/Portfile b/devel/zlog/Portfile
index fa99135b1c061..233faca6b6bc9 100644
--- a/devel/zlog/Portfile
+++ b/devel/zlog/Portfile
@@ -16,3 +16,5 @@ long_description        {*}${description}
 checksums               rmd160  f9969c546b2008b5aa9e3fdb01afb1facb8f239b \
                         sha256  3977dc8ea0069139816ec4025b320d9a7fc2035398775ea91429e83cb0d1ce4e \
                         size    130997
+
+patchfiles-append       patch-stdint.diff
diff --git a/devel/zlog/files/patch-stdint.diff b/devel/zlog/files/patch-stdint.diff
new file mode 100644
index 0000000000000..1df63bcfe3752
--- /dev/null
+++ b/devel/zlog/files/patch-stdint.diff
@@ -0,0 +1,11 @@
+event.c:106:5: error: use of undeclared identifier 'uint64_t'
+--- src/event.c
++++ src/event.c
+@@ -21,6 +21,7 @@
+ #include <stdlib.h>
+ #include <stdio.h>
+ #include <errno.h>
++#include <stdint.h>
+ 
+ #include <pthread.h>
+ #include <unistd.h>