diff --git a/common/interpreter/wawaka_wasm/README.md b/common/interpreter/wawaka_wasm/README.md
index 91855386..52afb220 100644
--- a/common/interpreter/wawaka_wasm/README.md
+++ b/common/interpreter/wawaka_wasm/README.md
@@ -82,17 +82,17 @@ be adjusted depending on the requirements for a WASM contract:
 To facilitate configuring wawaka's memory, we provide
 three pre-defined memory configurations that meet most
 contract requirements:
-- `SMALL`: 1MB WASM runtime memory pool (64KB stack, 768KB heap)
-- `MEDIUM`: 2MB WASM runtime memory pool (256KB stack, 1.5MB heap)
-- `LARGE`: 4MB WASM runtime memory pool (512KB stack, 3MB heap)
+- `SMALL`: 4MB WASM runtime memory pool (512KB stack, 3MB heap)
+- `MEDIUM`: 8MB WASM runtime memory pool (512KB stack, 7MB heap)
+- `LARGE`: 16MB WASM runtime memory pool (512KB stack, 15MB heap)
 
 To use a specific memory configuration, set
-the environment variable `WASM_MEM_CONFIG` (the default is the `MEDIUM`
+the environment variable `PDO_MEMORY_CONFIG` (the default is the `MEDIUM`
 configuration) to build the wawaka interpreter with those memory
 settings:
 
 ```bash
-export WASM_MEM_CONFIG=MEDIUM
+export PDO_MEMORY_CONFIG=MEDIUM
 ```
 
 Here are some tips for choosing the right wawaka memory configuration
diff --git a/docs/environment.md b/docs/environment.md
index 2625f1d6..abea80ed 100644
--- a/docs/environment.md
+++ b/docs/environment.md
@@ -107,19 +107,16 @@ The git submodule points to the latest tagged commit of [WAMR](https://github.co
 `WAMR-1.1.2`.
 
 <!-- -------------------------------------------------- -->
-### `WASM_MEM_CONFIG`
+### `PDO_MEMORY_CONFIG`
 (default: `MEDIUM`)
 
-`WASM_MEM_CONFIG` indicates the memory configuration for the
-WASM runtime: the runtime's global memory pool size,
-the WASM module's heap size, and the size of module's
-operand stack.
-When the variable is set to `SMALL`, the runtime's global memory
-pool size is set to 1MB.
-If the variable is set to `MEDIUM`, the runtime's memory pool
-size is set to 2MB.
-When the variable is set to `LARGE`, the runtime's memory
-pool size is set to 4MB.
+`PDO_MEMORY_CONFIG` indicates the memory configuration for the enclave
+and WASM runtime: the runtime's global memory pool size, the WASM
+module's heap size, and the size of module's operand stack.  When the
+variable is set to `SMALL`, the runtime's global memory pool size is
+set to 4MB.  If the variable is set to `MEDIUM`, the runtime's memory
+pool size is set to 8MB.  When the variable is set to `LARGE`, the
+runtime's memory pool size is set to 16MB.
 
 <!-- -------------------------------------------------- -->
 <!-- -------------------------------------------------- -->