diff --git a/.travis.yml b/.travis.yml
index 094f1d43013443b22c3a94e26528c0627e7b7e63..ffb2690f05b5c2f0b9cf4f8dda76514811df91cf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,7 @@ env:
   - PLUMED_CC=gcc   PLUMED_CXX=g++   CPPCHECK=yes
 matrix:
   allow_failures:
-    - env: PLUMED_CC=gcc   PLUMED_CXX=g++  CPPCHECK=yes
+    - env: PLUMED_CC=gcc   PLUMED_CXX=g++   CPPCHECK=yes
 # Possible additional variables:
 #   VALGRIND=yes to make valgrind tests, only when log contains string [valgrind]
 install: