diff --git a/arch/EVM/EVMMapping.c b/arch/EVM/EVMMapping.c
index bd0a598..3894089 100644
--- a/arch/EVM/EVMMapping.c
+++ b/arch/EVM/EVMMapping.c
@@ -323,8 +323,6 @@
 	{ EVM_GRP_JUMP,	"jump" },
 	// special groups
 	{ EVM_GRP_MATH,	"math" },
-
-	{ EVM_GRP_MATH,	"math" },
 	{ EVM_GRP_STACK_WRITE, "stack_write" },
 	{ EVM_GRP_STACK_READ, "stack_read" },
 	{ EVM_GRP_MEM_WRITE, "mem_write" },