diff --git a/evm/src/cpu/kernel/asm/ripemd/compression.asm b/evm/src/cpu/kernel/asm/ripemd/compression.asm
index 6fb54f6c..6c5c254f 100644
--- a/evm/src/cpu/kernel/asm/ripemd/compression.asm
+++ b/evm/src/cpu/kernel/asm/ripemd/compression.asm
@@ -115,7 +115,7 @@ update_round_vars:
     // stack: rnd, rnd, STATE, F , K , 16, rounds, sides, virt, retdest
     SWAP7  
     POP  
-    %push_F  
+    %push_f  
     SWAP7
     // stack: rnd, rnd, STATE, F', K , 16, rounds, sides, virt, retdest
     SWAP8  
diff --git a/evm/src/cpu/kernel/asm/ripemd/subroutines.asm b/evm/src/cpu/kernel/asm/ripemd/subroutines.asm
index 8e1181ae..cc4cab29 100644
--- a/evm/src/cpu/kernel/asm/ripemd/subroutines.asm
+++ b/evm/src/cpu/kernel/asm/ripemd/subroutines.asm
@@ -23,7 +23,7 @@ global rol:
     SWAP1  
     JUMP
 
-// def push_F(rnd):
+// def push_f(rnd):
 //     Fs = [F0, F1, F2, F3, F4, F4, F3, F2, F1, F0]
 //     acc = 0
 //     for i, F in enumerate(Fs):
@@ -33,7 +33,7 @@ global rol:
 // the macro %this_F(i,F) enacts
 //     acc += (i==rnd)*F
 
-%macro push_F
+%macro push_f
     // stack:    rnd
     PUSH 0
     %this_F(0,F0)