diff --git a/docs/user-guide.md b/docs/user-guide.md
index c1cadbb..9a9334f 100644
--- a/docs/user-guide.md
+++ b/docs/user-guide.md
@@ -322,7 +322,7 @@
 
 #### ARM development platform specific build options
 
-*   `ARM_TSP_RAM_LOCATION_ID`: location of the TSP binary. Options:
+*   `ARM_TSP_RAM_LOCATION`: location of the TSP binary. Options:
     -   `tsram` : Trusted SRAM (default option)
     -   `tdram` : Trusted DRAM (if available)
     -   `dram`  : Secure region in DRAM (configured by the TrustZone controller)