diff --git a/include/wx/stc/stc.h b/include/wx/stc/stc.h
index 589d081bef..df2a3f23bc 100644
--- a/include/wx/stc/stc.h
+++ b/include/wx/stc/stc.h
@@ -4584,10 +4584,10 @@ public:
     // Get the current indicator value
     int GetIndicatorValue() const;
 
-    // Turn a indicator on over a range.
+    // Turn an indicator on over a range.
     void IndicatorFillRange(int start, int lengthFill);
 
-    // Turn a indicator off over a range.
+    // Turn an indicator off over a range.
     void IndicatorClearRange(int start, int lengthClear);
 
     // Are any indicators present at pos?
diff --git a/interface/wx/stc/stc.h b/interface/wx/stc/stc.h
index a84ea593d2..3ba0111d6f 100644
--- a/interface/wx/stc/stc.h
+++ b/interface/wx/stc/stc.h
@@ -5517,12 +5517,12 @@ public:
     int GetIndicatorValue() const;
 
     /**
-        Turn a indicator on over a range.
+        Turn an indicator on over a range.
     */
     void IndicatorFillRange(int start, int lengthFill);
 
     /**
-        Turn a indicator off over a range.
+        Turn an indicator off over a range.
     */
     void IndicatorClearRange(int start, int lengthClear);
 
@@ -8124,7 +8124,7 @@ public:
 
     @c wxEVT_STC_HOTSPOT_RELEASE_CLICK
 
-    - Generated when a click over a hotspot has been released.
+    - Generated when a click-over hotspot has been released.
 
     - Valid event functions:
     @link wxStyledTextEvent::GetModifiers GetModifiers@endlink,
@@ -8146,7 +8146,7 @@ public:
 
     @c wxEVT_STC_INDICATOR_RELEASE
 
-    - Generated when a click over a indicator has been released.
+    - Generated when a click over an indicator has been released.
 
     - Valid event functions:
     @link wxStyledTextEvent::GetModifiers GetModifiers@endlink,
diff --git a/src/stc/scintilla/include/Scintilla.iface b/src/stc/scintilla/include/Scintilla.iface
index c1760df4ea..d5be8c58c0 100644
--- a/src/stc/scintilla/include/Scintilla.iface
+++ b/src/stc/scintilla/include/Scintilla.iface
@@ -2150,10 +2150,10 @@ set void SetIndicatorValue=2502(int value,)
 # Get the current indicator value
 get int GetIndicatorValue=2503(,)
 
-# Turn a indicator on over a range.
+# Turn an indicator on over a range.
 fun void IndicatorFillRange=2504(position start, int lengthFill)
 
-# Turn a indicator off over a range.
+# Turn an indicator off over a range.
 fun void IndicatorClearRange=2505(position start, int lengthClear)
 
 # Are any indicators present at pos?
diff --git a/src/stc/stc.cpp b/src/stc/stc.cpp
index 427d095c67..752a69c70a 100644
--- a/src/stc/stc.cpp
+++ b/src/stc/stc.cpp
@@ -3734,13 +3734,13 @@ int wxStyledTextCtrl::GetIndicatorValue() const
     return SendMsg(SCI_GETINDICATORVALUE, 0, 0);
 }
 
-// Turn a indicator on over a range.
+// Turn an indicator on over a range.
 void wxStyledTextCtrl::IndicatorFillRange(int start, int lengthFill)
 {
     SendMsg(SCI_INDICATORFILLRANGE, start, lengthFill);
 }
 
-// Turn a indicator off over a range.
+// Turn an indicator off over a range.
 void wxStyledTextCtrl::IndicatorClearRange(int start, int lengthClear)
 {
     SendMsg(SCI_INDICATORCLEARRANGE, start, lengthClear);
diff --git a/src/stc/stc.interface.h.in b/src/stc/stc.interface.h.in
index 7d2ed03a07..22266e76ea 100644
--- a/src/stc/stc.interface.h.in
+++ b/src/stc/stc.interface.h.in
@@ -1065,7 +1065,7 @@ public:
 
     @c wxEVT_STC_HOTSPOT_RELEASE_CLICK
 
-    - Generated when a click over a hotspot has been released.
+    - Generated when a click-over hotspot has been released.
 
     - Valid event functions:
     @link wxStyledTextEvent::GetModifiers GetModifiers@endlink,
@@ -1087,7 +1087,7 @@ public:
 
     @c wxEVT_STC_INDICATOR_RELEASE
 
-    - Generated when a click over a indicator has been released.
+    - Generated when a click over an indicator has been released.
 
     - Valid event functions:
     @link wxStyledTextEvent::GetModifiers GetModifiers@endlink,