diff --git a/panda/src/linmath/lvector2.I b/panda/src/linmath/lvector2.I
index d71eecece7..78be371947 100644
--- a/panda/src/linmath/lvector2.I
+++ b/panda/src/linmath/lvector2.I
@@ -199,7 +199,7 @@ template<class NumType>
 INLINE bool LVector2<NumType>::
 normalize() {
   NumType l2 = length_squared();
-  if (l2 == 0.0) {
+  if (l2 == (NumType)0.0) {
     set(0.0, 0.0);
     return false;
 
diff --git a/panda/src/linmath/lvector3.I b/panda/src/linmath/lvector3.I
index 5e73b977b9..81aa9a66a2 100644
--- a/panda/src/linmath/lvector3.I
+++ b/panda/src/linmath/lvector3.I
@@ -211,7 +211,7 @@ template<class NumType>
 INLINE bool LVector3<NumType>::
 normalize() {
   NumType l2 = length_squared();
-  if (l2 == 0.0) {
+  if (l2 == (NumType)0.0) {
     set(0.0, 0.0, 0.0);
     return false;
 
diff --git a/panda/src/linmath/lvector4.I b/panda/src/linmath/lvector4.I
index fab2837c93..841f0ee850 100644
--- a/panda/src/linmath/lvector4.I
+++ b/panda/src/linmath/lvector4.I
@@ -222,7 +222,7 @@ template<class NumType>
 INLINE bool LVector4<NumType>::
 normalize() {
   NumType l2 = length_squared();
-  if (l2 == 0.0) {
+  if (l2 == (NumType)0.0) {
     set(0.0, 0.0, 0.0, 0.0);
     return false;