diff --git a/modules/common/chowdsp_core/Memory/chowdsp_AlignedAlloc.h b/modules/common/chowdsp_core/Memory/chowdsp_AlignedAlloc.h
index 2bb9825b4..dbc8bb87a 100644
--- a/modules/common/chowdsp_core/Memory/chowdsp_AlignedAlloc.h
+++ b/modules/common/chowdsp_core/Memory/chowdsp_AlignedAlloc.h
@@ -43,7 +43,9 @@ inline void aligned_free (void* data)
 #pragma clang diagnostic ignored "-Wunguarded-availability-new"
 #endif
 
-    return std::aligned_alloc (alignment, size);
+    // size is required to be a multiple of alignment!
+    const auto size_padded = ((size + alignment - 1) / alignment) * alignment;
+    return std::aligned_alloc (alignment, size_padded);
 
 #ifdef __clang__
 #pragma clang diagnostic pop