diff --git a/src/scripting/vm/jit.cpp b/src/scripting/vm/jit.cpp
index b5b8869e9a..e239e76c3a 100644
--- a/src/scripting/vm/jit.cpp
+++ b/src/scripting/vm/jit.cpp
@@ -144,11 +144,6 @@ bool JitCompiler::CanJit(VMScriptFunction *sfunc)
 	int size = sfunc->CodeSize;
 	for (int i = 0; i < size; i++)
 	{
-		// Functions not implemented at all yet:
-
-		if (sfunc->Code[i].op == OP_IJMP)
-			return false;
-
 		// Partially implemented functions:
 
 		auto pc = sfunc->Code + i;
diff --git a/src/scripting/vm/jit_flow.cpp b/src/scripting/vm/jit_flow.cpp
index 8641c2da89..1db547d991 100644
--- a/src/scripting/vm/jit_flow.cpp
+++ b/src/scripting/vm/jit_flow.cpp
@@ -25,7 +25,27 @@ void JitCompiler::EmitJMP()
 
 void JitCompiler::EmitIJMP()
 {
-	I_FatalError("EmitIJMP not implemented\n");
+	// This uses the whole function as potential jump targets. Can the range be reduced?
+
+	int i = (int)(ptrdiff_t)(pc - sfunc->Code);
+	auto val = cc.newInt32();
+	cc.mov(val, regD[A]);
+	cc.add(val, i + (int)BCs + 1);
+
+	int size = sfunc->CodeSize;
+	for (i = 0; i < size; i++)
+	{
+		if (sfunc->Code[i].op == OP_JMP)
+		{
+			int target = i + JMPOFS(&sfunc->Code[i]) + 1;
+
+			cc.cmp(val, i);
+			cc.je(labels[target]);
+		}
+	}
+
+	// This should never happen. It means we are jumping to something that is not a JMP instruction!
+	EmitThrowException(X_OTHER);
 }
 
 void JitCompiler::EmitVTBL()