diff --git a/academic/gelemental/gcc.patch b/academic/gelemental/gcc.patch
new file mode 100644
index 0000000000..eeb16293d9
--- /dev/null
+++ b/academic/gelemental/gcc.patch
@@ -0,0 +1,12 @@
+diff -Naur gelemental-1.2.0.orig/src/dialogs.cc gelemental-1.2.0/src/dialogs.cc
+--- gelemental-1.2.0.orig/src/dialogs.cc	2007-09-25 06:49:33.000000000 +0200
++++ gelemental-1.2.0/src/dialogs.cc	2017-07-27 21:45:34.356776770 +0200
+@@ -247,7 +247,7 @@
+ 	const Gtk::TreePath& tpath, bool)
+ {
+ 	Gtk::TreeIter iter = store->get_iter (tpath);
+-	return iter ? iter->get_value (cols.property) : false;
++	return iter ? static_cast<bool>(iter->get_value (cols.property)) : false;
+ }
+ 
+ 
diff --git a/academic/gelemental/gelemental.SlackBuild b/academic/gelemental/gelemental.SlackBuild
index e4b332e18a..d2ae765eb6 100644
--- a/academic/gelemental/gelemental.SlackBuild
+++ b/academic/gelemental/gelemental.SlackBuild
@@ -70,6 +70,9 @@ 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 {} \;
 
+# Fix for the newer gcc
+patch -p1 -i $CWD/gcc.patch
+
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS -std=c++11" \
 ./configure \