diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97cf0796f43..83d7c8940c7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -45,6 +45,7 @@
 - Dev: Refactor/unsingletonize `UserDataController`. (#5459)
 - Dev: Cleanup `BrowserExtension`. (#5465)
 - Dev: Deprecate Qt 5.12. (#5396)
+- Dev: The running Qt version is now shown in the about page if it differs from the compiled version. (#5501)
 
 ## 2.5.1
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7728acdf66c..849397b7d12 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -947,6 +947,10 @@ set_target_properties(${LIBRARY_PROJECT}
 # this is its own project.
 set(VERSION_SOURCE_FILES common/Version.cpp common/Version.hpp)
 add_library(${VERSION_PROJECT} STATIC ${VERSION_SOURCE_FILES})
+target_compile_definitions(${VERSION_PROJECT} PRIVATE
+    $<$<BOOL:${WIN32}>:USEWINSDK>
+    $<$<BOOL:${BUILD_WITH_CRASHPAD}>:CHATTERINO_WITH_CRASHPAD>
+)
 
 # source group for IDEs
 source_group(TREE ${CMAKE_SOURCE_DIR} FILES ${VERSION_SOURCE_FILES})
diff --git a/src/common/Version.cpp b/src/common/Version.cpp
index 76ef549a0d0..5e23272cb58 100644
--- a/src/common/Version.cpp
+++ b/src/common/Version.cpp
@@ -1,11 +1,15 @@
 #include "common/Version.hpp"
 
+#include "common/Literals.hpp"
 #include "common/Modes.hpp"
 
 #include <QFileInfo>
+#include <QStringBuilder>
 
 namespace chatterino {
 
+using namespace literals;
+
 Version::Version()
     : version_(CHATTERINO_VERSION)
     , commitHash_(QStringLiteral(CHATTERINO_GIT_HASH))
@@ -79,11 +83,17 @@ QStringList Version::buildTags() const
 {
     QStringList tags;
 
-    tags.append("Qt " QT_VERSION_STR);
+    const auto *runtimeVersion = qVersion();
+    if (runtimeVersion != QLatin1String{QT_VERSION_STR})
+    {
+        tags.append(u"Qt "_s QT_VERSION_STR u" (running on " % runtimeVersion %
+                    u")");
+    }
+    else
+    {
+        tags.append(u"Qt "_s QT_VERSION_STR);
+    }
 
-#ifdef USEWINSDK
-    tags.append("Windows SDK");
-#endif
 #ifdef _MSC_FULL_VER
     tags.append("MSVC " + QString::number(_MSC_FULL_VER, 10));
 #endif