diff --git a/include/dolphin/mtx/vec.h b/include/dolphin/mtx/vec.h
index c361bb78a..148d90a72 100644
--- a/include/dolphin/mtx/vec.h
+++ b/include/dolphin/mtx/vec.h
@@ -49,6 +49,14 @@ inline f32 C_VECSquareMag(const Vec* v) {
     return v->x * v->x + v->y * v->y + v->z * v->z;
 }
 
+inline BOOL checkScaleOne(Vec v) {
+    if (v.x == 1.0f && v.y == 1.0f && v.z == 1.0f) {
+        return TRUE;
+    } else {
+        return FALSE;
+    }
+}
+
 /* When compiling in debug mode, use C implementations */
 #if 0
 #define VECAdd C_VECAdd
diff --git a/src/JSystem/J3DGraphAnimator/J3DJoint.cpp b/src/JSystem/J3DGraphAnimator/J3DJoint.cpp
index 1d4201af2..80e967c81 100644
--- a/src/JSystem/J3DGraphAnimator/J3DJoint.cpp
+++ b/src/JSystem/J3DGraphAnimator/J3DJoint.cpp
@@ -56,15 +56,8 @@ void J3DMtxCalcBasic::calcTransform(u16 param_0, const J3DTransformInfo& info) {
     J3DSys::mCurrentS.x *= info.mScale.x;
     J3DSys::mCurrentS.y *= info.mScale.y;
     J3DSys::mCurrentS.z *= info.mScale.z;
-    Vec tmp = J3DSys::mCurrentS;
-    s32 var1;
-    if (tmp.x == 1.0f && tmp.y == 1.0f && tmp.z == 1.0f) {
-        var1 = 1;
-    } else {
-        var1 = 0;
-    }
     s32 r29;
-    if (var1) {
+    if (checkScaleOne(J3DSys::mCurrentS)) {
         j3dSys.getModel()->setScaleFlag(param_0, 1);
         r29 = 1;
     } else {
@@ -112,15 +105,8 @@ void J3DMtxCalcSoftimage::calcTransform(u16 param_0, const J3DTransformInfo& inf
     J3DSys::mCurrentS.x = J3DSys::mCurrentS.x * info.mScale.x;
     J3DSys::mCurrentS.y = J3DSys::mCurrentS.y * info.mScale.y;
     J3DSys::mCurrentS.z = J3DSys::mCurrentS.z * info.mScale.z;
-    Vec tmp = J3DSys::mCurrentS;
-    s32 var1;
-    if (tmp.x == 1.0f && tmp.y == 1.0f && tmp.z == 1.0f) {
-        var1 = 1;
-    } else {
-        var1 = 0;
-    }
     s32 var2;
-    if (var1) {
+    if (checkScaleOne(J3DSys::mCurrentS)) {
         j3dSys.getModel()->setScaleFlag(param_0, 1);
         var2 = 1;
     } else {