diff --git a/.gitignore b/.gitignore
index 9b361656aa..0fe6d5985e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@ Makefile.Debug
 Makefile.Release
 object_script.*.Debug
 object_script.*.Release
+compile_commands.json
 
 stxxl.errlog
 stxxl.log
diff --git a/tools/unix/build_omim.sh b/tools/unix/build_omim.sh
index c50f6ddacf..fea88c396c 100755
--- a/tools/unix/build_omim.sh
+++ b/tools/unix/build_omim.sh
@@ -10,8 +10,8 @@ OPT_GCC=
 OPT_TARGET=
 OPT_PATH=
 OPT_STANDALONE=
-
-while getopts ":cdrstagp:" opt; do
+OPT_COMPILE_DATABASE=
+while getopts ":cdrstagjp:" opt; do
   case $opt in
     d)
       OPT_DEBUG=1
@@ -35,12 +35,16 @@ while getopts ":cdrstagp:" opt; do
     g)
       OPT_GCC=1
       ;;
+    j)
+      OPT_COMPILE_DATABASE=1
+      CMAKE_CONFIG="${CMAKE_CONFIG:-} -DCMAKE_EXPORT_COMPILE_COMMANDS=YES"
+      ;;
     p)
       OPT_PATH="$OPTARG"
       ;;
     *)
       echo "This tool builds omim"
-      echo "Usage: $0 [-d] [-r] [-c] [-s] [-t] [-a] [-g] [-p PATH] [target1 target2 ...]"
+      echo "Usage: $0 [-d] [-r] [-c] [-s] [-t] [-a] [-g] [-j] [-p PATH] [target1 target2 ...]"
       echo
       echo -e "-d\tBuild omim-debug"
       echo -e "-r\tBuild omim-release"
@@ -50,6 +54,7 @@ while getopts ":cdrstagp:" opt; do
       echo -e "-a\tBuild standalone desktop app (only for MacOS X platform)"
       echo -e "-g\tForce use GCC (only for MacOS X platform)"
       echo -e "-p\tDirectory for built binaries"
+      echo -e "-j\tGenerate compile_commands.json"
       echo "By default both configurations is built."
       exit 1
       ;;
@@ -78,7 +83,7 @@ if ! grep "DEFAULT_URLS_JSON" "$OMIM_PATH/private.h" >/dev/null 2>/dev/null; the
   exit 2
 fi
 
-DEVTOOLSET_PATH=/opt/rh/devtoolset-6
+DEVTOOLSET_PATH=/opt/rh/devtoolset-7
 if [ -d "$DEVTOOLSET_PATH" ]; then
   export MANPATH=
   source "$DEVTOOLSET_PATH/enable"
@@ -147,6 +152,9 @@ build()
       exit 1
     fi
   fi
+  if [ -n "$OPT_COMPILE_DATABASE" ]; then
+    cp "$DIRNAME/compile_commands.json" "$OMIM_PATH"
+  fi
 }
 
 [ -n "$OPT_DEBUG" ]   && build Debug