diff --git a/src/code.l b/src/code.l
index f014924a0ab..5b8a084b1d2 100644
--- a/src/code.l
+++ b/src/code.l
@@ -3700,7 +3700,7 @@ void codeFreeScanner()
 extern "C" { // some bogus code to keep the compiler happy
   void codeYYdummy() { yy_flex_realloc(0,0); } 
 }
-#elif YY_FLEX_MAJOR_VERISON<=2 && YY_FLEX_MINOR_VERSION<=5 && YY_FLEX_SUBMINOR_VERSION<33
+#elif YY_FLEX_MAJOR_VERSION<=2 && YY_FLEX_MINOR_VERSION<=5 && YY_FLEX_SUBMINOR_VERSION<33
 #error "You seem to be using a version of flex newer than 2.5.4. These are currently incompatible with 2.5.4, and do NOT work with doxygen! Please use version 2.5.4 or expect things to be parsed wrongly! A bug report has been submitted (#732132)."
 #endif
 
diff --git a/src/pycode.l b/src/pycode.l
index 2b2a6684e2a..c3219d91c90 100644
--- a/src/pycode.l
+++ b/src/pycode.l
@@ -1503,7 +1503,7 @@ void parsePythonCode(CodeOutputInterface &od,const char * /*className*/,
 extern "C" { // some bogus code to keep the compiler happy
   void pycodeYYdummy() { yy_flex_realloc(0,0); } 
 }
-#elif YY_FLEX_MAJOR_VERISON<=2 && YY_FLEX_MINOR_VERSION<=5 && YY_FLEX_SUBMINOR_VERSION<33
+#elif YY_FLEX_MAJOR_VERSION<=2 && YY_FLEX_MINOR_VERSION<=5 && YY_FLEX_SUBMINOR_VERSION<33
 #error "You seem to be using a version of flex newer than 2.5.4. These are currently incompatible with 2.5.4, and do NOT work with doxygen! Please use version 2.5.4 or expect things to be parsed wrongly! A bug report has been submitted (#732132)."
 #endif