diff --git a/src/ir/emit_llvm.zig b/src/ir/emit_llvm.zig
index bca2bb4..e35464f 100644
--- a/src/ir/emit_llvm.zig
+++ b/src/ir/emit_llvm.zig
@@ -1243,6 +1243,7 @@ pub const LLVMEmitter = struct {
                     .void => Jni.CallVoidMethod,
                     .s32 => Jni.CallIntMethod,
                     .s64 => Jni.CallLongMethod,
+                    .f64 => Jni.CallDoubleMethod,
                     else => {
                         self.mapRef(c.LLVMGetUndef(self.toLLVMType(instruction.ty)));
                         return;
diff --git a/tests/expected/ffi-jni-call-06-jdouble-return.ir b/tests/expected/ffi-jni-call-06-jdouble-return.ir
index 6c4587d..a66699d 100644
--- a/tests/expected/ffi-jni-call-06-jdouble-return.ir
+++ b/tests/expected/ffi-jni-call-06-jdouble-return.ir
@@ -3,6 +3,8 @@
 @g_should_call = internal global i1 false
 @str = private unnamed_addr constant [9 x i8] c"getValue\00", align 1
 @str.1 = private unnamed_addr constant [4 x i8] c"()D\00", align 1
+@SX_JNI_CLS_getValue____D = internal global ptr null
+@SX_JNI_MID_getValue____D = internal global ptr null
 @str.2 = private unnamed_addr constant [4 x i8] c"ok\0A\00", align 1
 @str.3 = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
 
@@ -205,7 +207,31 @@ entry:
   store ptr %1, ptr %allocaN, align 8
   %load = load ptr, ptr %alloca, align 8
   %loadN = load ptr, ptr %allocaN, align 8
-  ret double undef
+  %jni.ifs = load ptr, ptr %load, align 8
+  %jni.cached.mid = load ptr, ptr @SX_JNI_MID_getValue____D, align 8
+  %jni.is.cached = icmp ne ptr %jni.cached.mid, null
+  br i1 %jni.is.cached, label %jni.cont, label %jni.miss
+
+jni.miss:                                         ; preds = %entry
+  %2 = getelementptr inbounds ptr, ptr %jni.ifs, i32 31
+  %jni.GetObjectClass = load ptr, ptr %2, align 8
+  %jni.cls = call ptr %jni.GetObjectClass(ptr %load, ptr %loadN)
+  %3 = getelementptr inbounds ptr, ptr %jni.ifs, i32 21
+  %jni.NewGlobalRef = load ptr, ptr %3, align 8
+  %jni.global.cls = call ptr %jni.NewGlobalRef(ptr %load, ptr %jni.cls)
+  store ptr %jni.global.cls, ptr @SX_JNI_CLS_getValue____D, align 8
+  %4 = getelementptr inbounds ptr, ptr %jni.ifs, i32 33
+  %jni.GetMethodID = load ptr, ptr %4, align 8
+  %jni.fresh.mid = call ptr %jni.GetMethodID(ptr %load, ptr %jni.global.cls, ptr @str, ptr @str.1)
+  store ptr %jni.fresh.mid, ptr @SX_JNI_MID_getValue____D, align 8
+  br label %jni.cont
+
+jni.cont:                                         ; preds = %jni.miss, %entry
+  %jni.mid = phi ptr [ %jni.cached.mid, %entry ], [ %jni.fresh.mid, %jni.miss ]
+  %5 = getelementptr inbounds ptr, ptr %jni.ifs, i32 58
+  %jni.callfn = load ptr, ptr %5, align 8
+  %jni.ret = call double %jni.callfn(ptr %load, ptr %loadN, ptr %jni.mid)
+  ret double %jni.ret
 }
 
 ; Function Attrs: nounwind