diff --git a/ggml/src/iqk/iqk_mul_mat.cpp b/ggml/src/iqk/iqk_mul_mat.cpp
index 3764ddc6..e6a6f5ec 100644
--- a/ggml/src/iqk/iqk_mul_mat.cpp
+++ b/ggml/src/iqk/iqk_mul_mat.cpp
@@ -6246,7 +6246,7 @@ static void mul_mat_q8_KV_q8_KV_1(int n, const void * vx, size_t bx, const DataI
     GGML_ASSERT(nrc_x%8 == 0);
     GGML_ASSERT(n%32 == 0);
     __m256i qx[2];
-    __m256i acc[nrc_y] = {};
+    __m256i acc[2*nrc_y] = {};
     float   dy[nrc_y];
 #ifdef HAVE_FANCY_SIMD
     int32_t sy[nrc_y];
@@ -6279,10 +6279,10 @@ static void mul_mat_q8_KV_q8_KV_1(int n, const void * vx, size_t bx, const DataI
             for (int iy = 0; iy < nrc_y; ++iy) {
                 for (int j = 0; j < 2; ++j) {
 #ifdef HAVE_FANCY_SIMD
-                    acc[iy] = _mm256_dpbusd_epi32(acc[iy], qx[j], _mm256_loadu_si256((const __m256i *)q8y[iy] + 2*i + j));
+                    acc[2*iy+j] = _mm256_dpbusd_epi32(acc[2*iy+j], qx[j], _mm256_loadu_si256((const __m256i *)q8y[iy] + 2*i + j));
 #else
                     auto dot = _mm256_maddubs_epi16(sx[j], _mm256_sign_epi8(_mm256_loadu_si256((const __m256i *)q8y[iy] + 2*i + j), qx[j]));
-                    acc[iy] = _mm256_add_epi32(acc[iy], _mm256_madd_epi16(m1, dot));
+                    acc[2*iy+j] = _mm256_add_epi32(acc[2*iy+j], _mm256_madd_epi16(m1, dot));
 #endif
                 }
             }
@@ -6296,21 +6296,21 @@ static void mul_mat_q8_KV_q8_KV_1(int n, const void * vx, size_t bx, const DataI
 #endif
             for (int iy = 0; iy < nrc_y; ++iy) {
 #ifdef HAVE_FANCY_SIMD
-                acc[iy] = _mm256_dpbusd_epi32(acc[iy], qx[0], _mm256_loadu_si256((const __m256i *)q8y[iy] + i));
+                acc[2*iy] = _mm256_dpbusd_epi32(acc[2*iy], qx[0], _mm256_loadu_si256((const __m256i *)q8y[iy] + i));
 #else
                 auto dot = _mm256_maddubs_epi16(sx[0], _mm256_sign_epi8(_mm256_loadu_si256((const __m256i *)q8y[iy] + i), qx[0]));
-                acc[iy] = _mm256_add_epi32(acc[iy], _mm256_madd_epi16(m1, dot));
+                acc[2*iy] = _mm256_add_epi32(acc[2*iy], _mm256_madd_epi16(m1, dot));
 #endif
             }
         }
         for (int iy = 0; iy < nrc_y; ++iy) {
-            auto sumi = hsum_i32_8(acc[iy]);
+            auto sumi = hsum_i32_8(_mm256_add_epi32(acc[2*iy], acc[2*iy+1]));
 #ifdef HAVE_FANCY_SIMD
             info.store(ix, iy, dx[0]*dy[iy]*(sumi+sy[iy]));
 #else
             info.store(ix, iy, dx[0]*dy[iy]*sumi);
 #endif
-            acc[iy] = _mm256_setzero_si256();
+            acc[2*iy] = acc[2*iy+1] = _mm256_setzero_si256();
         }
     }
 }