diff --git a/themes/agnoster/agnoster.theme.bash b/themes/agnoster/agnoster.theme.bash
index dae991cf..06f73c02 100644
--- a/themes/agnoster/agnoster.theme.bash
+++ b/themes/agnoster/agnoster.theme.bash
@@ -210,7 +210,8 @@ prompt_virtualenv() {
     if [[ -n $VIRTUAL_ENV ]]; then
         color=cyan
         prompt_segment $color $PRIMARY_FG
-        prompt_segment $color white "$(basename $VIRTUAL_ENV)"
+        ve=`basename "$VIRTUAL_ENV"`
+        prompt_segment $color white "$ve"
     fi
 }
 
diff --git a/themes/mairan/mairan.theme.bash b/themes/mairan/mairan.theme.bash
index 5c5dfef1..e6728824 100644
--- a/themes/mairan/mairan.theme.bash
+++ b/themes/mairan/mairan.theme.bash
@@ -109,7 +109,7 @@ prompt() {
 
     if [ -n "$VIRTUAL_ENV" ]
     then
-        ve=`basename $VIRTUAL_ENV`;
+        ve=`basename "$VIRTUAL_ENV"`;
     fi
 
     # nice prompt
diff --git a/themes/ramses/ramses.theme.bash b/themes/ramses/ramses.theme.bash
index 37fd00f1..83ab810f 100644
--- a/themes/ramses/ramses.theme.bash
+++ b/themes/ramses/ramses.theme.bash
@@ -81,7 +81,7 @@ prompt() {
 
     if [ -n "$VIRTUAL_ENV" ]
     then
-        ve=`basename $VIRTUAL_ENV`;
+        ve=`basename "$VIRTUAL_ENV"`;
     fi
 
     # nice prompt