diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec
index 3e91d6c195..c026cf535b 100644
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -366,8 +366,8 @@
   # @Prompt The specified AP target C-state for Mwait.
   gUefiCpuPkgTokenSpaceGuid.PcdCpuApTargetCstate|0|UINT8|0x00000007
 
-  ## Specifies timeout value in microseconds for the BSP in SMM to wait for all APs to come into SMM.
-  # @Prompt AP synchronization timeout value in SMM.
+  ## Specifies the 1st timeout value in microseconds for the BSP/AP in SMM to wait for one another to enter SMM.
+  # @Prompt The 1st BSP/AP synchronization timeout value in SMM.
   gUefiCpuPkgTokenSpaceGuid.PcdCpuSmmApSyncTimeout|1000000|UINT64|0x32132104
 
   ## Specifies the 2nd timeout value in microseconds for the BSP/AP in SMM to wait for one another to enter SMM.
diff --git a/UefiCpuPkg/UefiCpuPkg.uni b/UefiCpuPkg/UefiCpuPkg.uni
index 0637b8309b..25a7176194 100644
--- a/UefiCpuPkg/UefiCpuPkg.uni
+++ b/UefiCpuPkg/UefiCpuPkg.uni
@@ -128,9 +128,9 @@
 
 #string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuSmmShadowStackSize_HELP   #language en-US "Specifies shadow stack size in bytes for each processor in SMM."
 
-#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuSmmApSyncTimeout_PROMPT  #language en-US "AP synchronization timeout value in SMM"
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuSmmApSyncTimeout_PROMPT  #language en-US "The 1st BSP/AP synchronization timeout value in SMM."
 
-#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuSmmApSyncTimeout_HELP  #language en-US "Specifies timeout value in microseconds for the BSP in SMM to wait for all APs to come into SMM."
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuSmmApSyncTimeout_HELP  #language en-US "Specifies the 1st timeout value in microseconds for the BSP/AP in SMM to wait for one another to enter SMM."
 
 #string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuSmmApSyncTimeout2_PROMPT  #language en-US "The 2nd BSP/AP synchronization timeout value in SMM"