diff --git a/Build/Scripts/build_thirdparty_libs.sh b/Build/Scripts/build_thirdparty_libs.sh
index aca3e4194bb..b253d030912 100755
--- a/Build/Scripts/build_thirdparty_libs.sh
+++ b/Build/Scripts/build_thirdparty_libs.sh
@@ -6,7 +6,6 @@ echo "Current shell: $SHELL"
 source ../Scripts/set_compilers.sh
 
 
-
 # PARSE OPTIONS FOR CLEAN LIBRARY BUILDS ####################################
 
 # Set FIREMODELS environment variable if it is not already exists.
diff --git a/Build/Scripts/set_compilers.sh b/Build/Scripts/set_compilers.sh
index 82862bd3c7a..5137d1bb7e3 100755
--- a/Build/Scripts/set_compilers.sh
+++ b/Build/Scripts/set_compilers.sh
@@ -1,3 +1,5 @@
+#!/bin/bash
+
 echo "FDS build target = $FDS_BUILD_TARGET"
 
 # Initialize variables and check environment variables