diff --git a/libclc/generic/include/clc/clc.h b/libclc/generic/include/clc/clc.h
index 65e4090a0354..28338716d76b 100644
--- a/libclc/generic/include/clc/clc.h
+++ b/libclc/generic/include/clc/clc.h
@@ -59,6 +59,7 @@
 
 /* 6.11.5 Geometric Functions */
 #include <clc/geometric/cross.h>
+#include <clc/geometric/dot.h>
 #include <clc/geometric/length.h>
 #include <clc/geometric/normalize.h>
 
diff --git a/libclc/generic/include/clc/geometric/dot.inc b/libclc/generic/include/clc/geometric/dot.inc
new file mode 100644
index 000000000000..69c53a9641d6
--- /dev/null
+++ b/libclc/generic/include/clc/geometric/dot.inc
@@ -0,0 +1 @@
+_CLC_OVERLOAD _CLC_DECL FLOAT dot(FLOATN p0, FLOATN p1);
diff --git a/libclc/generic/lib/geometric/dot.cl b/libclc/generic/lib/geometric/dot.cl
index 76cc1d2bdc6a..0d6fe6c9a4e8 100644
--- a/libclc/generic/lib/geometric/dot.cl
+++ b/libclc/generic/lib/geometric/dot.cl
@@ -15,3 +15,25 @@ _CLC_OVERLOAD _CLC_DEF float dot(float3 p0, float3 p1) {
 _CLC_OVERLOAD _CLC_DEF float dot(float4 p0, float4 p1) {
   return p0.x*p1.x + p0.y*p1.y + p0.z*p1.z + p0.w*p1.w;
 }
+
+#ifdef cl_khr_fp64
+
+#pragma OPENCL EXTENSION cl_khr_fp64 : enable
+
+_CLC_OVERLOAD _CLC_DEF double dot(double p0, double p1) {
+  return p0*p1;
+}
+
+_CLC_OVERLOAD _CLC_DEF double dot(double2 p0, double2 p1) {
+  return p0.x*p1.x + p0.y*p1.y;
+}
+
+_CLC_OVERLOAD _CLC_DEF double dot(double3 p0, double3 p1) {
+  return p0.x*p1.x + p0.y*p1.y + p0.z*p1.z;
+}
+
+_CLC_OVERLOAD _CLC_DEF double dot(double4 p0, double4 p1) {
+  return p0.x*p1.x + p0.y*p1.y + p0.z*p1.z + p0.w*p1.w;
+}
+
+#endif