diff --git a/modules/juce_core/containers/juce_AbstractFifo.cpp b/modules/juce_core/containers/juce_AbstractFifo.cpp
index fa1bc2e20c..c2be77163b 100644
--- a/modules/juce_core/containers/juce_AbstractFifo.cpp
+++ b/modules/juce_core/containers/juce_AbstractFifo.cpp
@@ -35,7 +35,7 @@
 namespace juce
 {
 
-AbstractFifo::AbstractFifo (int capacity) noexcept : bufferSize (capacity)
+AbstractFifo::AbstractFifo (int backingBufferSize) noexcept : bufferSize (backingBufferSize)
 {
     jassert (bufferSize > 0);
 }
diff --git a/modules/juce_core/containers/juce_AbstractFifo.h b/modules/juce_core/containers/juce_AbstractFifo.h
index 12f75881cc..54231e01e0 100644
--- a/modules/juce_core/containers/juce_AbstractFifo.h
+++ b/modules/juce_core/containers/juce_AbstractFifo.h
@@ -85,8 +85,11 @@ class JUCE_API  AbstractFifo
 {
 public:
     //==============================================================================
-    /** Creates a FIFO to manage a buffer with the specified capacity. */
-    AbstractFifo (int capacity) noexcept;
+    /** Creates a FIFO to manage a buffer with the specified size.
+
+        The maximum number of items managed by the FIFO is 1 less than the buffer size.
+    */
+    explicit AbstractFifo (int bufferSize) noexcept;
 
     //==============================================================================
     /** Returns the total size of the buffer being managed. */
@@ -102,6 +105,7 @@ public:
     void reset() noexcept;
 
     /** Changes the buffer's total size.
+
         Note that this isn't thread-safe, so don't call it if there's any danger that it
         might overlap with a call to any other method in this class!
     */