diff --git a/modules/juce_audio_basics/utilities/juce_CatmullRomInterpolator.h b/modules/juce_audio_basics/utilities/juce_CatmullRomInterpolator.h
index ab3ca754f2..2d89a34efa 100644
--- a/modules/juce_audio_basics/utilities/juce_CatmullRomInterpolator.h
+++ b/modules/juce_audio_basics/utilities/juce_CatmullRomInterpolator.h
@@ -42,6 +42,9 @@ public:
     CatmullRomInterpolator() noexcept;
     ~CatmullRomInterpolator() noexcept;
 
+    CatmullRomInterpolator (CatmullRomInterpolator&&) noexcept = default;
+    CatmullRomInterpolator& operator= (CatmullRomInterpolator&&) noexcept = default;
+
     /** Resets the state of the interpolator.
         Call this when there's a break in the continuity of the input data stream.
     */
diff --git a/modules/juce_audio_basics/utilities/juce_LagrangeInterpolator.h b/modules/juce_audio_basics/utilities/juce_LagrangeInterpolator.h
index 6914e465c0..25598e7500 100644
--- a/modules/juce_audio_basics/utilities/juce_LagrangeInterpolator.h
+++ b/modules/juce_audio_basics/utilities/juce_LagrangeInterpolator.h
@@ -42,6 +42,9 @@ public:
     LagrangeInterpolator() noexcept;
     ~LagrangeInterpolator() noexcept;
 
+    LagrangeInterpolator (LagrangeInterpolator&&) noexcept = default;
+    LagrangeInterpolator& operator= (LagrangeInterpolator&&) noexcept = default;
+
     /** Resets the state of the interpolator.
         Call this when there's a break in the continuity of the input data stream.
     */