diff --git a/Tests/LibWeb/TestCSSPixels.cpp b/Tests/LibWeb/TestCSSPixels.cpp
index 7c78cbab9d..99c839a7ba 100644
--- a/Tests/LibWeb/TestCSSPixels.cpp
+++ b/Tests/LibWeb/TestCSSPixels.cpp
@@ -87,4 +87,12 @@ TEST_CASE(saturated_subtraction)
     EXPECT_EQ(value - -1, CSSPixels(INFINITY));
 }
 
+TEST_CASE(multiplication_uses_i64_for_raw_values)
+{
+    CSSPixels a(1200);
+    CSSPixels b(647);
+    CSSPixels c = a * b;
+    EXPECT_EQ(c, CSSPixels(776400));
+}
+
 }
diff --git a/Userland/Libraries/LibWeb/PixelUnits.cpp b/Userland/Libraries/LibWeb/PixelUnits.cpp
index 6fc367a8f3..e8077bb630 100644
--- a/Userland/Libraries/LibWeb/PixelUnits.cpp
+++ b/Userland/Libraries/LibWeb/PixelUnits.cpp
@@ -119,7 +119,7 @@ CSSPixels CSSPixels::operator-(CSSPixels const& other) const
 CSSPixels CSSPixels::operator*(CSSPixels const& other) const
 {
     CSSPixels result;
-    result.set_raw_value((raw_value() * other.raw_value()) >> fractional_bits);
+    result.set_raw_value((static_cast<i64>(raw_value()) * other.raw_value()) >> fractional_bits);
     return result;
 }