diff --git a/pandatool/src/gtk-stats/gtkStatsMonitor.cxx b/pandatool/src/gtk-stats/gtkStatsMonitor.cxx
index ff4e6e2a6c..914bdd87e4 100644
--- a/pandatool/src/gtk-stats/gtkStatsMonitor.cxx
+++ b/pandatool/src/gtk-stats/gtkStatsMonitor.cxx
@@ -155,7 +155,7 @@ new_collector(int) {
 //     Function: GtkStatsMonitor::new_data
 //       Access: Public, Virtual
 //  Description: Called as each frame's data is made available.  There
-//               is no gurantee the frames will arrive in order, or
+//               is no guarantee the frames will arrive in order, or
 //               that all of them will arrive at all.  The monitor
 //               should be prepared to accept frames received
 //               out-of-order or missing.
diff --git a/pandatool/src/pstatserver/pStatMonitor.cxx b/pandatool/src/pstatserver/pStatMonitor.cxx
index 4a5d0bb428..394d140b78 100644
--- a/pandatool/src/pstatserver/pStatMonitor.cxx
+++ b/pandatool/src/pstatserver/pStatMonitor.cxx
@@ -274,7 +274,7 @@ new_thread(int) {
 //     Function: PStatMonitor::new_data
 //       Access: Public, Virtual
 //  Description: Called as each frame's data is made available.  There
-//               is no gurantee the frames will arrive in order, or
+//               is no guarantee the frames will arrive in order, or
 //               that all of them will arrive at all.  The monitor
 //               should be prepared to accept frames received
 //               out-of-order or missing.  The use of the
diff --git a/pandatool/src/win-stats/winStatsMonitor.cxx b/pandatool/src/win-stats/winStatsMonitor.cxx
index c3c2527f09..bab8351373 100644
--- a/pandatool/src/win-stats/winStatsMonitor.cxx
+++ b/pandatool/src/win-stats/winStatsMonitor.cxx
@@ -143,7 +143,7 @@ new_collector(int collector_index) {
 //     Function: WinStatsMonitor::new_data
 //       Access: Public, Virtual
 //  Description: Called as each frame's data is made available.  There
-//               is no gurantee the frames will arrive in order, or
+//               is no guarantee the frames will arrive in order, or
 //               that all of them will arrive at all.  The monitor
 //               should be prepared to accept frames received
 //               out-of-order or missing.