diff --git a/api/swagger.yaml b/api/swagger.yaml
index cf7043d336..a21d345704 100644
--- a/api/swagger.yaml
+++ b/api/swagger.yaml
@@ -5095,9 +5095,9 @@ paths:
         This endpoint returns a live stream of a container’s resource usage
         statistics.
 
-        The `precpu_stats` is the CPU statistic of last read, which is used
-        for calculating the CPU usage percentage. It is not the same as the
-        `cpu_stats` field.
+        The `precpu_stats` is the CPU statistic of the *previous* read, and is
+        used to calculate the CPU usage percentage. It is not an exact copy
+        of the `cpu_stats` field.
 
         If either `precpu_stats.online_cpus` or `cpu_stats.online_cpus` is
         nil then for compatibility with older daemons the length of the
diff --git a/docs/api/v1.19.md b/docs/api/v1.19.md
index 448fe832ef..f3d44555a5 100644
--- a/docs/api/v1.19.md
+++ b/docs/api/v1.19.md
@@ -739,7 +739,7 @@ This endpoint returns a live stream of a container's resource usage statistics.
          }
       }
 
-The `precpu_stats` is the cpu statistic of last read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
+The `precpu_stats` is the cpu statistic of *previous* read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
 
 **Query parameters**:
 
diff --git a/docs/api/v1.20.md b/docs/api/v1.20.md
index b971bab4be..199428121b 100644
--- a/docs/api/v1.20.md
+++ b/docs/api/v1.20.md
@@ -748,7 +748,7 @@ This endpoint returns a live stream of a container's resource usage statistics.
          }
       }
 
-The `precpu_stats` is the cpu statistic of last read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
+The `precpu_stats` is the cpu statistic of *previous* read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
 
 **Query parameters**:
 
diff --git a/docs/api/v1.21.md b/docs/api/v1.21.md
index 2971d25c45..3ecfd3b9f9 100644
--- a/docs/api/v1.21.md
+++ b/docs/api/v1.21.md
@@ -829,7 +829,7 @@ This endpoint returns a live stream of a container's resource usage statistics.
          }
       }
 
-The `precpu_stats` is the cpu statistic of last read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
+The `precpu_stats` is the cpu statistic of *previous* read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
 
 **Query parameters**:
 
diff --git a/docs/api/v1.22.md b/docs/api/v1.22.md
index a51fbcb7de..fc19c9f0af 100644
--- a/docs/api/v1.22.md
+++ b/docs/api/v1.22.md
@@ -957,7 +957,7 @@ This endpoint returns a live stream of a container's resource usage statistics.
          }
       }
 
-The `precpu_stats` is the cpu statistic of last read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
+The `precpu_stats` is the cpu statistic of *previous* read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
 
 **Query parameters**:
 
diff --git a/docs/api/v1.23.md b/docs/api/v1.23.md
index 677dcab789..218734aea6 100644
--- a/docs/api/v1.23.md
+++ b/docs/api/v1.23.md
@@ -986,7 +986,7 @@ This endpoint returns a live stream of a container's resource usage statistics.
          }
       }
 
-The `precpu_stats` is the cpu statistic of last read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
+The `precpu_stats` is the cpu statistic of *previous* read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
 
 **Query parameters**:
 
diff --git a/docs/api/v1.24.md b/docs/api/v1.24.md
index a32325e2d9..e320020ed6 100644
--- a/docs/api/v1.24.md
+++ b/docs/api/v1.24.md
@@ -1036,7 +1036,7 @@ This endpoint returns a live stream of a container's resource usage statistics.
          }
       }
 
-The `precpu_stats` is the cpu statistic of last read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
+The `precpu_stats` is the cpu statistic of *previous* read, which is used for calculating the cpu usage percent. It is not the exact copy of the `cpu_stats` field.
 
 **Query parameters**: