diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3123aa9d2..10d68db86 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1111,7 +1111,9 @@ if(NOT MATIO_FOUND)
                 endif(${LINUX_DISTRIBUTION} MATCHES "Fedora" OR ${LINUX_DISTRIBUTION} MATCHES "Red Hat")
                 message(FATAL_ERROR "libtool is required to build matio from source")
             endif(NOT EXISTS "/usr/bin/libtoolize")
-            if(NOT EXISTS "/usr/bin/aclocal-1.15" OR EXISTS "/usr/bin/aclocal-1.14" OR EXISTS "/usr/bin/aclocal-1.13" OR EXISTS "/usr/bin/aclocal-1.11"  OR EXISTS "/usr/bin/aclocal-1.10")
+            if(EXISTS "/usr/bin/aclocal-1.15" OR EXISTS "/usr/bin/aclocal-1.14" OR EXISTS "/usr/bin/aclocal-1.13" OR EXISTS "/usr/bin/aclocal-1.11"  OR EXISTS "/usr/bin/aclocal-1.10")
+                message(STATUS "aclocal found")
+            else(EXISTS "/usr/bin/aclocal-1.15" OR EXISTS "/usr/bin/aclocal-1.14" OR EXISTS "/usr/bin/aclocal-1.13" OR EXISTS "/usr/bin/aclocal-1.11"  OR EXISTS "/usr/bin/aclocal-1.10")
                 message(" aclocal has not been found.")
                 message(" You can try to install it by typing:")
                 if(${LINUX_DISTRIBUTION} MATCHES "Fedora" OR ${LINUX_DISTRIBUTION} MATCHES "Red Hat")
@@ -1122,7 +1124,7 @@ if(NOT MATIO_FOUND)
                     message(" sudo apt-get install automake")
                 endif(${LINUX_DISTRIBUTION} MATCHES "Fedora" OR ${LINUX_DISTRIBUTION} MATCHES "Red Hat")
                 message(FATAL_ERROR "aclocal is required to build matio from source")
-             endif(NOT EXISTS "/usr/bin/aclocal-1.15" OR EXISTS "/usr/bin/aclocal-1.14" OR EXISTS "/usr/bin/aclocal-1.13" OR EXISTS "/usr/bin/aclocal-1.11"  OR EXISTS "/usr/bin/aclocal-1.10")
+             endif(EXISTS "/usr/bin/aclocal-1.15" OR EXISTS "/usr/bin/aclocal-1.14" OR EXISTS "/usr/bin/aclocal-1.13" OR EXISTS "/usr/bin/aclocal-1.11"  OR EXISTS "/usr/bin/aclocal-1.10")
         endif(OS_IS_LINUX)      
         find_package(HDF5)
         if(HDF5_FOUND)