diff --git a/Makefile b/Makefile
index 3d6f658db3a..c319d182a0b 100644
--- a/Makefile
+++ b/Makefile
@@ -98,7 +98,7 @@ CFLAGS=-Wall -Wno-unused-parameter -Wno-unknown-pragmas -fPIC -rdynamic
 
 ifeq ($(USE_CPP), 1)
 # C is not C++
-CFLAGS+=-fpermissive -Wno-write-strings
+CFLAGS+=-Wno-write-strings
 else
 CFLAGS+=-Wextra
 endif
diff --git a/src/convolutional_layer.c b/src/convolutional_layer.c
index 4c284842aac..d9aa28396f1 100644
--- a/src/convolutional_layer.c
+++ b/src/convolutional_layer.c
@@ -1084,8 +1084,8 @@ void binary_align_weights(convolutional_layer *l)
 
     int align_weights_size = new_lda * m;
     l->align_bit_weights_size = align_weights_size / 8 + 1;
-    float* align_weights = xcalloc(align_weights_size, sizeof(float));
-    l->align_bit_weights = xcalloc(l->align_bit_weights_size, sizeof(char));
+    float* align_weights = (float*)xcalloc(align_weights_size, sizeof(float));
+    l->align_bit_weights = (char*)xcalloc(l->align_bit_weights_size, sizeof(char));
 
     int i, j;
     // align A without transpose