Forward search doesn't work (from TexMaker to SumatraPDF)

When I try to press ctrl+space (or F7) in order to activate the forward search it doesn’t work. The pdfLatex field is

pdflatex -synctex=1 -interaction=nonstopmode %.tex

The external viewer field is

"C:Program FilesSumatraPDFSumatraPDF.exe" -1 -s @%.tex %.pdf

I also tried to compile it 3 times before the forward search but it doesn’t work either.