diff --git a/src/main/scala/Decoder.scala b/src/main/scala/Decoder.scala
index f4ddd66..3f6dc46 100644
--- a/src/main/scala/Decoder.scala
+++ b/src/main/scala/Decoder.scala
@@ -87,7 +87,7 @@ class Decoder() extends Module {
 
     // signal      regWrite, memRead, memWrite, branch,  jump, branchType,      Op1Select,      Op2Select, ImmSelect,        ALUOp
     JAL    -> List(Y,        N,       N,        Y,       Y,    branchType.jump, PC,             imm,       ImmFormat.JTYPE,  ALUOps.ADD   ),
-    JALR   -> List(Y,        N,       N,        Y,       Y,    branchType.jump, rs1,            imm,       ImmFormat.JTYPE,  ALUOps.ADDR  ),
+    JALR   -> List(Y,        N,       N,        Y,       Y,    branchType.jump, rs1,            imm,       ImmFormat.ITYPE,  ALUOps.ADDR  ),
   )
 
 
diff --git a/src/test/resources/tests/jump.s b/src/test/resources/tests/jump.s
index e9334e9..cb18ee4 100644
--- a/src/test/resources/tests/jump.s
+++ b/src/test/resources/tests/jump.s
@@ -1,11 +1,8 @@
 main:
-    addi x2, x2, 4
-    j loop
-
-end:
+    jal x1, end
+    addi x1, x1, 0
     done
 
-loop:
-    bge x1, x2, end
-    addi x1, x1, 1
-    j loop
\ No newline at end of file
+end:
+    jr x1
+    addi x1, x1, 1
\ No newline at end of file
diff --git a/src/test/scala/Manifest.scala b/src/test/scala/Manifest.scala
index d38187b..1f1cae2 100644
--- a/src/test/scala/Manifest.scala
+++ b/src/test/scala/Manifest.scala
@@ -19,7 +19,7 @@ import LogParser._
 
 object Manifest {
 
-  val singleTest = "branch.s"
+  val singleTest = "jump.s"
 
   val nopPadded = true