diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e21c7d..2690baf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,7 +55,7 @@ IF(YORICK_SUPPORT)
 ENDIF(YORICK_SUPPORT)
 
 find_program(CYTHON cython3 cython)
-find_library(ZLIB z)
+find_library(ZLIB_LIBRARY z)
 find_library(DL_LIBRARY dl)
 find_library(MATH_LIBRARY m)
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 196ed36..a4c81e8 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -79,7 +79,7 @@ if(YORICK_SUPPORT)
 endif(YORICK_SUPPORT)
 
 if (HDF5_FOUND)
-  set(CosmoTool_LIBS ${CosmoTool_LIBS} ${HDF5_CXX_LIBRARIES} ${HDF5_HL_LIBRARIES} ${HDF5_LIBRARIES} ${ZLIB})
+  set(CosmoTool_LIBS ${CosmoTool_LIBS} ${HDF5_CXX_LIBRARIES} ${HDF5_HL_LIBRARIES} ${HDF5_LIBRARIES} ${ZLIB_LIBRARY})
   message(STATUS "CosmoTool_LIBS: ${CosmoTool_LIBS}")
 endif (HDF5_FOUND)
 
diff --git a/src/loadRamses.cpp b/src/loadRamses.cpp
index 0c628f8..3e841d5 100644
--- a/src/loadRamses.cpp
+++ b/src/loadRamses.cpp
@@ -34,7 +34,7 @@ knowledge of the CeCILL license and that you accept its terms.
 +*/
 
 #include <sys/types.h>
-#include "/usr/include/regex.h"
+#include <regex.h>
 #include <cmath>
 #include <cstring>
 #include <cstdlib>