diff --git a/SHADE_Engine/src/Physics/Dynamics/Constraints/SHContactConstraint.h b/SHADE_Engine/src/Physics/Dynamics/Constraints/SHContactConstraint.h
index 04be00b4..072a6b5f 100644
--- a/SHADE_Engine/src/Physics/Dynamics/Constraints/SHContactConstraint.h
+++ b/SHADE_Engine/src/Physics/Dynamics/Constraints/SHContactConstraint.h
@@ -39,8 +39,8 @@ namespace SHADE
 
     float     invMassA    = 0.0f;
     float     invMassB    = 0.0f;
-    SHMatrix  invInertiaA;
-    SHMatrix  invInertiaB;
+    SHVec3    invInertiaA;
+    SHVec3    invInertiaB;
     SHVec3    centerOfMassA;
     SHVec3    centerOfMassB;