diff --git a/panda/src/linmath/lmatrix4_src.I b/panda/src/linmath/lmatrix4_src.I
index 99d930bd0b..e1040444f2 100644
--- a/panda/src/linmath/lmatrix4_src.I
+++ b/panda/src/linmath/lmatrix4_src.I
@@ -1045,7 +1045,7 @@ operator += (const FLOATNAME(LMatrix4) &other) {
 }
 
 /**
- * Performs a memberwise addition between two matrices.
+ * Performs a memberwise subtraction between two matrices.
  */
 INLINE_LINMATH FLOATNAME(LMatrix4) &FLOATNAME(LMatrix4)::
 operator -= (const FLOATNAME(LMatrix4) &other) {