diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc4fe5a6a..ad7dcb99e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -789,7 +789,7 @@ endif (APPLE)
 
 set_source_files_properties (${WSJTX_ICON_FILE} PROPERTIES MACOSX_PACKAGE_LOCATION Resources)
 
-# supress intransigent compiler diagnostics
+# suppress intransigent compiler diagnostics
 set_source_files_properties (lib/decoder.f90 PROPERTIES COMPILE_FLAGS "-Wno-unused-dummy-argument")
 set_source_files_properties (lib/filbig.f90 PROPERTIES COMPILE_FLAGS "-Wno-aliasing")