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-rw-r--r--dmagick/Color.d2
1 files changed, 1 insertions, 1 deletions
diff --git a/dmagick/Color.d b/dmagick/Color.d
index cb17cf0..0813dc2 100644
--- a/dmagick/Color.d
+++ b/dmagick/Color.d
@@ -106,7 +106,7 @@ class Color
/**
* Returns the value as a hex string.
*/
- override string toString()
+ override string toString() const
{
static if ( MagickQuantumDepth == 8 )
string frm = "%02X";