diff --git a/include/hip/hcc_detail/hip_complex.h b/include/hip/hcc_detail/hip_complex.h
index 804cc51783..d19abd7247 100644
--- a/include/hip/hcc_detail/hip_complex.h
+++ b/include/hip/hcc_detail/hip_complex.h
@@ -130,7 +130,7 @@ struct hipFloatComplex {
 #ifdef __cplusplus
    public:
    typedef float value_type;
-    explicit __device__ __host__ hipFloatComplex() : x(0.0f), y(0.0f) {}
+    __device__ __host__ hipFloatComplex() : x(0.0f), y(0.0f) {}
     explicit __device__ __host__ hipFloatComplex(float x) : x(x), y(0.0f) {}
     __device__ __host__ hipFloatComplex(float x, float y) : x(x), y(y) {}
     MAKE_COMPONENT_CONSTRUCTOR_TWO_COMPONENT(hipFloatComplex, unsigned short)
@@ -151,7 +151,7 @@ struct hipDoubleComplex {
    public:
    typedef double value_type;
     __device__ __host__ hipDoubleComplex() : x(0.0f), y(0.0f) {}
-    __device__ __host__ hipDoubleComplex(double x) : x(x), y(0.0f) {}
+    explicit __device__ __host__ hipDoubleComplex(double x) : x(x), y(0.0f) {}
     __device__ __host__ hipDoubleComplex(double x, double y) : x(x), y(y) {}
     MAKE_COMPONENT_CONSTRUCTOR_TWO_COMPONENT(hipDoubleComplex, unsigned short)
     MAKE_COMPONENT_CONSTRUCTOR_TWO_COMPONENT(hipDoubleComplex, signed short)