diff --git a/desktop/kde/applications/kcontacts/files/qt5.patch b/desktop/kde/applications/kcontacts/files/qt5.patch
new file mode 100644
index 0000000000..b6e50bcfde
--- /dev/null
+++ b/desktop/kde/applications/kcontacts/files/qt5.patch
@@ -0,0 +1,25 @@
+diff -Nuar a/CMakeLists.txt b/CMakeLists.txt
+--- a/CMakeLists.txt	2017-12-08 04:01:29.000000000 +0300
++++ b/CMakeLists.txt	2017-12-16 13:20:44.507808201 +0300
+@@ -4,7 +4,7 @@
+ project(KContacts VERSION ${PIM_VERSION})
+ 
+ # ECM setup
+-set(QT_REQUIRED_VERSION "5.8.0")
++set(QT_REQUIRED_VERSION "5.7.1")
+ set(KF5_VERSION "5.39.0")
+ 
+ find_package(ECM ${KF5_VERSION} CONFIG REQUIRED)
+diff -Nuar a/src/vcardparser/vcardparser.cpp b/src/vcardparser/vcardparser.cpp
+--- a/src/vcardparser/vcardparser.cpp	2017-12-02 10:20:32.000000000 +0300
++++ b/src/vcardparser/vcardparser.cpp	2017-12-16 13:28:28.299774737 +0300
+@@ -183,7 +183,9 @@
+                 start = pos + 1;
+             }
+             // fall-through intended
++#if QT_VERSION >= QT_VERSION_CHECK(5,8,0)
+             Q_FALLTHROUGH();
++#endif
+         case StateAfterParamValue:
+             if (ch == ';') {
+                 state = StateParamKey;
diff --git a/desktop/kde/applications/kcontacts/pspec.xml b/desktop/kde/applications/kcontacts/pspec.xml
index 8de9d0e4da..c4ff4168b0 100644
--- a/desktop/kde/applications/kcontacts/pspec.xml
+++ b/desktop/kde/applications/kcontacts/pspec.xml
@@ -22,6 +22,9 @@
             <Dependency>kio-devel</Dependency>
             <Dependency>extra-cmake-modules</Dependency>
         </BuildDependencies>
+        <Patches>
+            <Patch>qt5.patch</Patch>
+        </Patches>
     </Source>
 
     <Package>
@@ -58,7 +61,7 @@
 
     <History>
         <Update release="14">
-            <Date>2017-12-15</Date>
+            <Date>2017-12-16</Date>
             <Version>17.12.0</Version>
             <Comment>Version bump.</Comment>
             <Name>Mustafa Cinasal</Name>