diff --git a/GNUmakefile b/GNUmakefile
index 1e7e9f78..1fe2fe46 100755
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -795,11 +795,11 @@ endif
 .PHONY: trim
 trim:
 ifneq ($(IS_DARWIN),0)
-	sed -i '' -e's/[[:space:]]*$$//' *.sh .*.yml *.h *.cpp *.asm *.s *.sln *.vcxproj *.filters GNUmakefile GNUmakefile-cross
+	sed -i '' -e's/[[:space:]]*$$//' *.txt *.sh .*.yml *.h *.cpp *.asm *.s *.sln *.vcxproj *.filters GNUmakefile GNUmakefile-cross
 	sed -i '' -e's/[[:space:]]*$$//' TestData/*.dat TestVectors/*.txt TestScripts/*.*
 	make convert
 else
-	sed -i -e's/[[:space:]]*$$//' *.sh .*.yml *.h *.cpp *.asm *.s *.sln *.vcxproj *.filters GNUmakefile GNUmakefile-cross
+	sed -i -e's/[[:space:]]*$$//' *.txt *.sh .*.yml *.h *.cpp *.asm *.s *.sln *.vcxproj *.filters GNUmakefile GNUmakefile-cross
 	sed -i -e's/[[:space:]]*$$//' TestData/*.dat TestVectors/*.txt TestScripts/*.*
 	make convert
 endif