diff --git a/kbackup.changes b/kbackup.changes
index 44dc839..d7eac42 100644
--- a/kbackup.changes
+++ b/kbackup.changes
@@ -12,6 +12,7 @@ Thu Jul 26 13:00:34 UTC 2018 - lbeltrame@kde.org
   * Fix includes
   * Use nullptr
   * fix releaseinfo
+- Build with gcc7 on Leap 42.3
 
 -------------------------------------------------------------------
 Fri Jul 13 04:49:51 UTC 2018 - lbeltrame@kde.org
diff --git a/kbackup.spec b/kbackup.spec
index 1d48d26..2f65f85 100644
--- a/kbackup.spec
+++ b/kbackup.spec
@@ -39,6 +39,15 @@ BuildRequires:  cmake(KF5WidgetsAddons)
 BuildRequires:  cmake(KF5XmlGui)
 BuildRequires:  cmake(Qt5Gui)
 BuildRequires:  cmake(Qt5Widgets)
+# Needed for 42.3
+%if 0%{?suse_version} < 1330
+# It does not build with the default compiler (GCC 4.8) on Leap 42.x
+%if 0%{?sle_version} < 120300
+BuildRequires:  gcc6-c++
+%else
+BuildRequires:  gcc7-c++
+%endif
+%endif
 
 %description
 kbackup is a backup program based on KDE Frameworks 5. It allows backing
@@ -52,6 +61,16 @@ Although GUI based, it also offers an automated, GUI-less mode.
 %setup -q
 
 %build
+  %if 0%{?suse_version} < 1330
+    # It does not build with the default compiler (GCC 4.8) on Leap 42.x
+    %if 0%{?sle_version} < 120300
+      export CC=gcc-6
+      export CXX=g++-6
+    %else
+      export CC=gcc-7
+      export CXX=g++-7
+    %endif
+  %endif
   %cmake_kf5 -d build
   %make_jobs