diff --git a/src/arch/x86/isa/microops/ldstop.isa b/src/arch/x86/isa/microops/ldstop.isa
index 834b3947f..af94cf31e 100644
--- a/src/arch/x86/isa/microops/ldstop.isa
+++ b/src/arch/x86/isa/microops/ldstop.isa
@@ -402,7 +402,9 @@ let {{
     decoder_output = ""
     exec_output = ""
 
-    calculateEA = "EA = SegBase + scale * Index + Base + disp;"
+    calculateEA = '''
+    EA = bits(SegBase + scale * Index + Base + disp, addressSize * 8 - 1, 0);
+    '''
 
     def defineMicroLoadOp(mnemonic, code, mem_flags="0"):
         global header_output