diff --git a/include/mostly_harmless/core/mostlyharmless_ISharedState.h b/include/mostly_harmless/core/mostlyharmless_ISharedState.h
index 6707986..c6ef838 100644
--- a/include/mostly_harmless/core/mostlyharmless_ISharedState.h
+++ b/include/mostly_harmless/core/mostlyharmless_ISharedState.h
@@ -111,6 +111,16 @@ namespace mostly_harmless::core {
          */
         void rescanParams() const;
 
+        /**
+         * Asks the host to resize your gui to the specified dimensions.
+         * Doesn't block, and is thread safe, more of a "please do this when you get a chance" than a "do this now".
+         * That said - if you call this from the audio thread it's kinda against the spirit of the framework, and this is my answer to JUCE's "tut tut tut..." comment..
+         * @param width The requested width.
+         * @param height The requested height.
+         * @return true if the host acknowledged the resize request, false otherwise.
+         */
+        bool requestGuiResize(std::uint32_t width, std::uint32_t height) const;
+
     private:
         SharedStateContext m_context;
         std::vector<Parameter<float>> m_params;
diff --git a/include/mostly_harmless/core/mostlyharmless_SharedStateContext.h b/include/mostly_harmless/core/mostlyharmless_SharedStateContext.h
index 1c5059a..461e672 100644
--- a/include/mostly_harmless/core/mostlyharmless_SharedStateContext.h
+++ b/include/mostly_harmless/core/mostlyharmless_SharedStateContext.h
@@ -25,6 +25,14 @@ namespace mostly_harmless::core {
          * Call this to request that the host rescans the param values, to keep them up to date.
          */
         std::function<void(void)> requestParamRescan{ nullptr };
+
+        /**
+         * Call this to ask the host to resize your editor to the specified dimensions.
+         * It's up to the host *when* it does this, and doesn't block.
+         * It's *technically* fine to call this from any thread, but obviously it doesn't really make sense to do from the audio thread...
+         * Args are width and height, and return value is whether the host acknowledged your resize request.
+         */
+        std::function<bool(std::uint32_t, std::uint32_t)> requestGuiResize{ nullptr };
     };
 } // namespace mostly_harmless::core
 #endif // MOSTLYHARMLESS_MOSTLYHARMLESS_SHAREDSTATECONTEXT_H
diff --git a/source/core/mostlyharmless_ISharedState.cpp b/source/core/mostlyharmless_ISharedState.cpp
index a160c22..8d62a9e 100644
--- a/source/core/mostlyharmless_ISharedState.cpp
+++ b/source/core/mostlyharmless_ISharedState.cpp
@@ -58,5 +58,9 @@ namespace mostly_harmless::core {
         m_context.requestParamRescan();
     }
 
+    bool ISharedState::requestGuiResize(std::uint32_t width, std::uint32_t height) const {
+        return m_context.requestGuiResize(width, height);
+    }
+
 
 } // namespace mostly_harmless::core
\ No newline at end of file
diff --git a/source/mostlyharmless_PluginBase.cpp b/source/mostlyharmless_PluginBase.cpp
index e21a1c9..a47bccc 100644
--- a/source/mostlyharmless_PluginBase.cpp
+++ b/source/mostlyharmless_PluginBase.cpp
@@ -23,6 +23,9 @@ namespace mostly_harmless::internal {
                 } },
             .requestParamRescan = [this]() -> void {
                 _host.paramsRescan(CLAP_PARAM_RESCAN_VALUES);
+            },
+            .requestGuiResize = [this](std::uint32_t width, std::uint32_t height) -> bool {
+                return _host.guiRequestResize(width, height);
             }
         };
         m_state = m_pluginEntry->createState(std::move(context));