diff --git a/pkgs/build-support/cc-wrapper/cc-wrapper.sh b/pkgs/build-support/cc-wrapper/cc-wrapper.sh
index f7541b15a82..6e12a0d8bc8 100644
--- a/pkgs/build-support/cc-wrapper/cc-wrapper.sh
+++ b/pkgs/build-support/cc-wrapper/cc-wrapper.sh
@@ -1,5 +1,5 @@
 #! @shell@ -e
-path_backup=$PATH
+path_backup="$PATH"
 if [ -n "@coreutils@" ]; then
   PATH="@coreutils@/bin:@gnugrep@/bin"
 fi
@@ -145,5 +145,5 @@ if [ -n "$NIX_CC_WRAPPER_EXEC_HOOK" ]; then
     source "$NIX_CC_WRAPPER_EXEC_HOOK"
 fi
 
-PATH=$path_backup
+PATH="$path_backup"
 exec @prog@ ${extraBefore[@]} "${params[@]}" "${extraAfter[@]}"
diff --git a/pkgs/build-support/cc-wrapper/gnat-wrapper.sh b/pkgs/build-support/cc-wrapper/gnat-wrapper.sh
index 603275e4e69..ae46b40ac63 100644
--- a/pkgs/build-support/cc-wrapper/gnat-wrapper.sh
+++ b/pkgs/build-support/cc-wrapper/gnat-wrapper.sh
@@ -1,5 +1,5 @@
 #! @shell@ -e
-path_backup=$PATH
+path_backup="$PATH"
 if [ -n "@coreutils@" ]; then
   PATH="@coreutils@/bin"
 fi
@@ -104,5 +104,5 @@ if [ -n "$NIX_GNAT_WRAPPER_EXEC_HOOK" ]; then
     source "$NIX_GNAT_WRAPPER_EXEC_HOOK"
 fi
 
-PATH=$path_backup
+PATH="$path_backup"
 exec @prog@ ${extraBefore[@]} "${params[@]}" ${extraAfter[@]}
diff --git a/pkgs/build-support/cc-wrapper/ld-wrapper.sh b/pkgs/build-support/cc-wrapper/ld-wrapper.sh
index a7ed2f364cd..6ef06eb7034 100644
--- a/pkgs/build-support/cc-wrapper/ld-wrapper.sh
+++ b/pkgs/build-support/cc-wrapper/ld-wrapper.sh
@@ -1,5 +1,5 @@
 #! @shell@ -e
-path_backup=$PATH
+path_backup="$PATH"
 if [ -n "@coreutils@" ]; then
   PATH="@coreutils@/bin"
 fi
@@ -167,5 +167,5 @@ if [ -n "$NIX_LD_WRAPPER_EXEC_HOOK" ]; then
     source "$NIX_LD_WRAPPER_EXEC_HOOK"
 fi
 
-PATH=$path_backup
+PATH="$path_backup"
 exec @prog@ ${extraBefore[@]} "${params[@]}" ${extra[@]}