diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9b4fe41f7..360d53b02 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -88,6 +88,9 @@ if(USE_PCH)
 	include(cotire/CMake/cotire)
 endif()
 
+# Load Qt5Core here as it can only be included once (QTBUG-87863)
+find_package(Qt5Core REQUIRED)
+
 add_subdirectory(lib)
 add_subdirectory(gui)
 add_subdirectory(gui-qml)
diff --git a/src/cli/CMakeLists.txt b/src/cli/CMakeLists.txt
index f9ae54227..bea05dd8d 100644
--- a/src/cli/CMakeLists.txt
+++ b/src/cli/CMakeLists.txt
@@ -2,7 +2,6 @@ project(cli)
 
 add_definitions(-DCLI=1)
 
-find_package(Qt5Core REQUIRED)
 find_package(Qt5Network REQUIRED)
 set(QT_LIBRARIES Qt5::Core Qt5::Network)
 
diff --git a/src/crash-reporter/CMakeLists.txt b/src/crash-reporter/CMakeLists.txt
index b28d2ab73..7d2dfbee6 100644
--- a/src/crash-reporter/CMakeLists.txt
+++ b/src/crash-reporter/CMakeLists.txt
@@ -1,6 +1,5 @@
 project(CrashReporter)
 
-find_package(Qt5Core REQUIRED)
 find_package(Qt5Gui REQUIRED)
 find_package(Qt5Widgets REQUIRED)
 set(QT_LIBRARIES Qt5::Core Qt5::Gui Qt5::Widgets)
diff --git a/src/e2e/CMakeLists.txt b/src/e2e/CMakeLists.txt
index a90b090d1..2f81ce5fe 100644
--- a/src/e2e/CMakeLists.txt
+++ b/src/e2e/CMakeLists.txt
@@ -1,6 +1,5 @@
 project(e2e)
 
-find_package(Qt5Core REQUIRED)
 set(QT_LIBRARIES Qt5::Core)
 
 file(GLOB_RECURSE SOURCES "src/*.cpp")
diff --git a/src/gui-qml/CMakeLists.txt b/src/gui-qml/CMakeLists.txt
index 6fefd2476..5f8163974 100644
--- a/src/gui-qml/CMakeLists.txt
+++ b/src/gui-qml/CMakeLists.txt
@@ -4,7 +4,6 @@ add_definitions(-DGUI=1)
 add_subdirectory(languages)
 
 # Qt libraries
-find_package(Qt5Core REQUIRED)
 find_package(Qt5Quick REQUIRED)
 find_package(Qt5Network REQUIRED)
 set(QT_LIBRARIES Qt5::Core Qt5::Quick Qt5::Network)
diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
index 23aa07285..3aef8f9cc 100644
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -36,7 +36,6 @@ endif()
 
 # Qt libraries
 find_package(Qt5Concurrent REQUIRED)
-find_package(Qt5Core REQUIRED)
 find_package(Qt5Gui REQUIRED)
 find_package(Qt5Network REQUIRED)
 find_package(Qt5Multimedia REQUIRED)
diff --git a/src/lib/CMakeLists.txt b/src/lib/CMakeLists.txt
index 6eb4b7a9c..eba704f34 100644
--- a/src/lib/CMakeLists.txt
+++ b/src/lib/CMakeLists.txt
@@ -1,7 +1,6 @@
 project(lib)
 
 find_package(Qt5Concurrent REQUIRED)
-find_package(Qt5Core REQUIRED)
 find_package(Qt5Gui REQUIRED) # For some classes such as QPixmap
 find_package(Qt5Network REQUIRED)
 find_package(Qt5Qml REQUIRED)
diff --git a/src/tests/CMakeLists.txt b/src/tests/CMakeLists.txt
index a4761d100..52196dd58 100644
--- a/src/tests/CMakeLists.txt
+++ b/src/tests/CMakeLists.txt
@@ -6,7 +6,6 @@ if(DEFINED HEADLESS)
 	add_definitions(-DHEADLESS=1)
 endif()
 
-find_package(Qt5Core REQUIRED)
 find_package(Qt5Gui REQUIRED)
 find_package(Qt5Test REQUIRED)
 find_package(Qt5Widgets REQUIRED)