diff --git a/scripts/decodecode b/scripts/decodecode
index b28fd26865617193defb80b8051e794a77e2ccba..8fe71c29238179095adb3f884049991e77be91c6 100755
--- a/scripts/decodecode
+++ b/scripts/decodecode
@@ -93,6 +93,11 @@ disas() {
 		${CROSS_COMPILE}strip $t.o
 	fi
 
+	if [ "$ARCH" = "riscv" ]; then
+		OBJDUMPFLAGS="-M no-aliases --section=.text -D"
+		${CROSS_COMPILE}strip $t.o
+	fi
+
 	if [ $pc_sub -ne 0 ]; then
 		if [ $PC ]; then
 			adj_vma=$(( $PC - $pc_sub ))
@@ -126,8 +131,13 @@ get_substr_opcode_bytes_num()
 	do
 		substr+="$opc"
 
+		opcode="$substr"
+		if [ "$ARCH" = "riscv" ]; then
+			opcode=$(echo $opcode | tr ' ' '\n' | tac | tr -d '\n')
+		fi
+
 		# return if opcode bytes do not match @opline anymore
-		if ! echo $opline | grep -q "$substr";
+		if ! echo $opline | grep -q "$opcode";
 		then
 			break
 		fi