diff --git a/misc/yapet/gcc6.patch b/misc/yapet/gcc6.patch
new file mode 100644
index 0000000000..a57e0c93c1
--- /dev/null
+++ b/misc/yapet/gcc6.patch
@@ -0,0 +1,11 @@
+--- yapet-1.0/yapet/cfg.h	2014-02-23 10:18:41.000000000 -0700
++++ yapet-1.0/yapet/cfg.h	2016-04-14 07:06:49.665672169 -0700
+@@ -163,7 +163,7 @@ 
+                     locked = false;
+                 }
+ 
+-                void is_locked() const {
++                bool is_locked() const {
+                     return locked;
+                 }
+ 
diff --git a/misc/yapet/yapet.SlackBuild b/misc/yapet/yapet.SlackBuild
index 25630ffe46..91af2b8d91 100644
--- a/misc/yapet/yapet.SlackBuild
+++ b/misc/yapet/yapet.SlackBuild
@@ -69,6 +69,9 @@ find -L . \
  \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
   -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
 
+# From upstream
+patch -p1 < $CWD/gcc6.patch
+
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \
 ./configure \