diff --git a/packages/react-reconciler/src/ReactFiberCompleteWork.new.js b/packages/react-reconciler/src/ReactFiberCompleteWork.new.js
index d27498638ce6..f366ccdf8839 100644
--- a/packages/react-reconciler/src/ReactFiberCompleteWork.new.js
+++ b/packages/react-reconciler/src/ReactFiberCompleteWork.new.js
@@ -992,7 +992,7 @@ function completeWork(
                   // Don't count time spent in a timed out Suspense subtree as part of the base duration.
                   const primaryChildFragment = workInProgress.child;
                   if (primaryChildFragment !== null) {
-                    // $FlowFixMe Flow doens't support type casting in combiation with the -= operator
+                    // $FlowFixMe Flow doesn't support type casting in combination with the -= operator
                     workInProgress.treeBaseDuration -= ((primaryChildFragment.treeBaseDuration: any): number);
                   }
                 }
@@ -1022,7 +1022,7 @@ function completeWork(
                   // Don't count time spent in a timed out Suspense subtree as part of the base duration.
                   const primaryChildFragment = workInProgress.child;
                   if (primaryChildFragment !== null) {
-                    // $FlowFixMe Flow doens't support type casting in combiation with the -= operator
+                    // $FlowFixMe Flow doesn't support type casting in combination with the -= operator
                     workInProgress.treeBaseDuration -= ((primaryChildFragment.treeBaseDuration: any): number);
                   }
                 }
@@ -1126,7 +1126,7 @@ function completeWork(
             // Don't count time spent in a timed out Suspense subtree as part of the base duration.
             const primaryChildFragment = workInProgress.child;
             if (primaryChildFragment !== null) {
-              // $FlowFixMe Flow doens't support type casting in combiation with the -= operator
+              // $FlowFixMe Flow doesn't support type casting in combination with the -= operator
               workInProgress.treeBaseDuration -= ((primaryChildFragment.treeBaseDuration: any): number);
             }
           }
diff --git a/packages/react-reconciler/src/ReactFiberCompleteWork.old.js b/packages/react-reconciler/src/ReactFiberCompleteWork.old.js
index da962bfdefee..8bfd7d3fe999 100644
--- a/packages/react-reconciler/src/ReactFiberCompleteWork.old.js
+++ b/packages/react-reconciler/src/ReactFiberCompleteWork.old.js
@@ -992,7 +992,7 @@ function completeWork(
                   // Don't count time spent in a timed out Suspense subtree as part of the base duration.
                   const primaryChildFragment = workInProgress.child;
                   if (primaryChildFragment !== null) {
-                    // $FlowFixMe Flow doens't support type casting in combiation with the -= operator
+                    // $FlowFixMe Flow doesn't support type casting in combination with the -= operator
                     workInProgress.treeBaseDuration -= ((primaryChildFragment.treeBaseDuration: any): number);
                   }
                 }
@@ -1022,7 +1022,7 @@ function completeWork(
                   // Don't count time spent in a timed out Suspense subtree as part of the base duration.
                   const primaryChildFragment = workInProgress.child;
                   if (primaryChildFragment !== null) {
-                    // $FlowFixMe Flow doens't support type casting in combiation with the -= operator
+                    // $FlowFixMe Flow doesn't support type casting in combination with the -= operator
                     workInProgress.treeBaseDuration -= ((primaryChildFragment.treeBaseDuration: any): number);
                   }
                 }
@@ -1126,7 +1126,7 @@ function completeWork(
             // Don't count time spent in a timed out Suspense subtree as part of the base duration.
             const primaryChildFragment = workInProgress.child;
             if (primaryChildFragment !== null) {
-              // $FlowFixMe Flow doens't support type casting in combiation with the -= operator
+              // $FlowFixMe Flow doesn't support type casting in combination with the -= operator
               workInProgress.treeBaseDuration -= ((primaryChildFragment.treeBaseDuration: any): number);
             }
           }