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-rw-r--r--src/display/nr-filter-colormatrix.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/display/nr-filter-colormatrix.cpp b/src/display/nr-filter-colormatrix.cpp
index 94459e3aa..8b7956833 100644
--- a/src/display/nr-filter-colormatrix.cpp
+++ b/src/display/nr-filter-colormatrix.cpp
@@ -33,7 +33,7 @@ FilterColorMatrix::~FilterColorMatrix()
struct ColorMatrixMatrix {
ColorMatrixMatrix(std::vector<double> const &values) {
- unsigned limit = std::min(20ul, values.size());
+ unsigned limit = std::min(static_cast<size_t>(20), values.size());
for (unsigned i = 0; i < limit; ++i) {
if (i % 5 == 4) {
_v[i] = round(values[i]*255*255);